Alzheimer’s may have once spread from person to person, but the risk of that happening today is incredibly low

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An article published this week in the prestigious journal Nature Medicine documents what is believed to be the first evidence that Alzheimer’s disease can be transmitted from person to person.

The finding arose from long-term follow up of patients who received human growth hormone (hGH) that was taken from brain tissue of deceased donors.

Preparations of donated hGH were used in medicine to treat a variety of conditions from 1959 onwards – including in Australia from the mid 60s.

The practice stopped in 1985 when it was discovered around 200 patients worldwide who had received these donations went on to develop Creuztfeldt-Jakob disease (CJD), which causes a rapidly progressive dementia. This is an otherwise extremely rare condition, affecting roughly one person in a million.

What’s CJD got to do with Alzehimer’s?

CJD is caused by prions: infective particles that are neither bacterial or viral, but consist of abnormally folded proteins that can be transmitted from cell to cell.

Other prion diseases include kuru, a dementia seen in New Guinea tribespeople caused by eating human tissue, scrapie (a disease of sheep) and variant CJD or bovine spongiform encephalopathy, otherwise known as mad cow disease. This raised public health concerns over the eating of beef products in the United Kingdom in the 1980s.

Human growth hormone used to come from donated organs

Human growth hormone (hGH) is produced in the brain by the pituitary gland. Treatments were originally prepared from purified human pituitary tissue.

But because the amount of hGH contained in a single gland is extremely small, any single dose given to any one patient could contain material from around 16,000 donated glands.

An average course of hGH treatment lasts around four years, so the chances of receiving contaminated material – even for a very rare condition such as CJD – became quite high for such people.

hGH is now manufactured synthetically in a laboratory, rather than from human tissue. So this particular mode of CJD transmission is no longer a risk.

Scientist in a lab
Human growth hormone is now produced in a lab.
National Cancer Institute/Unsplash

What are the latest findings about Alzheimer’s disease?

The Nature Medicine paper provides the first evidence that transmission of Alzheimer’s disease can occur via human-to-human transmission.

The authors examined the outcomes of people who received donated hGH until 1985. They found five such recipients had developed early-onset Alzheimer’s disease.

They considered other explanations for the findings but concluded donated hGH was the likely cause.

Given Alzheimer’s disease is a much more common illness than CJD, the authors presume those who received donated hGH before 1985 may be at higher risk of developing Alzheimer’s disease.

Alzheimer’s disease is caused by presence of two abnormally folded proteins: amyloid and tau. There is increasing evidence these proteins spread in the brain in a similar way to prion diseases. So the mode of transmission the authors propose is certainly plausible.

However, given the amyloid protein deposits in the brain at least 20 years before clinical Alzheimer’s disease develops, there is likely to be a considerable time lag before cases that might arise from the receipt of donated hGH become evident.

When was this process used in Australia?

In Australia, donated pituitary material was used from 1967 to 1985 to treat people with short stature and infertility.

More than 2,000 people received such treatment. Four developed CJD, the last case identified in 1991. All four cases were likely linked to a single contaminated batch.

The risks of any other cases of CJD developing now in pituitary material recipients, so long after the occurrence of the last identified case in Australia, are considered to be incredibly small.

Early-onset Alzheimer’s disease (defined as occurring before the age of 65) is uncommon, accounting for around 5% of all cases. Below the age of 50 it’s rare and likely to have a genetic contribution.

Older man places his hands on his head
Early onset Alzheimer’s means it occurs before age 65.
perfectlab/Shutterstock

The risk is very low – and you can’t ‘catch’ it like a virus

The Nature Medicine paper identified five cases which were diagnosed in people aged 38 to 55. This is more than could be expected by chance, but still very low in comparison to the total number of patients treated worldwide.

Although the long “incubation period” of Alzheimer’s disease may mean more similar cases may be identified in the future, the absolute risk remains very low. The main scientific interest of the article lies in the fact it’s first to demonstrate that Alzheimer’s disease can be transmitted from person to person in a similar way to prion diseases, rather than in any public health risk.

The authors were keen to emphasise, as I will, that Alzheimer’s cannot be contracted via contact with or providing care to people with Alzheimer’s disease.The Conversation

Steve Macfarlane, Head of Clinical Services, Dementia Support Australia, & Associate Professor of Psychiatry, Monash University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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  • ‘Sleep tourism’ promises the trip of your dreams. Beyond the hype plus 5 tips for a holiday at home

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    Imagine arriving at your hotel after a long flight and being greeted by your own personal sleep butler. They present you with a pillow menu and invite you to a sleep meditation session later that day.

    You unpack in a room kitted with an AI-powered smart bed, blackout shades, blue light-blocking glasses and weighted blankets.

    Holidays are traditionally for activities or sightseeing – eating Parisian pastry under the Eiffel tower, ice skating at New York City’s Rockefeller Centre, lying by the pool in Bali or sipping limoncello in Sicily. But “sleep tourism” offers vacations for the sole purpose of getting good sleep.

    The emerging trend extends out of the global wellness tourism industry – reportedly worth more than US$800 billion globally (A$1.2 trillion) and expected to boom.

    Luxurious sleep retreats and sleep suites at hotels are popping up all over the world for tourists to get some much-needed rest, relaxation and recovery. But do you really need to leave home for some shuteye?

    RossHelen/Shutterstock

    Not getting enough

    The rise of sleep tourism may be a sign of just how chronically sleep deprived we all are.

    In Australia more than one-third of adults are not achieving the recommended 7–9 hours of sleep per night, and the estimated cost of this inadequate sleep is A$45 billion each year.

    Inadequate sleep is linked to long-term health problems including poor mental health, heart disease, metabolic disease and deaths from any cause.

    Can a fancy hotel give you a better sleep?

    Many of the sleep services available in the sleep tourism industry aim to optimise the bedroom for sleep. This is a core component of sleep hygiene – a series of healthy sleep practices that facilitate good sleep including sleeping in a comfortable bedroom with a good mattress and pillow, sleeping in a quiet environment and relaxing before bed.

    The more people follow sleep hygiene practices, the better their sleep quality and quantity.

    When we are staying in a hotel we are also likely away from any stressors we encounter in everyday life (such as work pressure or caring responsibilities). And we’re away from potential nighttime disruptions to sleep we might experience at home (the construction work next door, restless pets, unsettled children). So regardless of the sleep features hotels offer, it is likely we will experience improved sleep when we are away.

    A do not disturb tag hangs on hotel door handle
    Being away from home also means being away from domestic disruptions. Makistock/Shutterstock

    What the science says about catching up on sleep

    In the short-term, we can catch up on sleep. This can happen, for example, after a short night of sleep when our brain accumulates “sleep pressure”. This term describes how strong the biological drive for sleep is. More sleep pressure makes it easier to sleep the next night and to sleep for longer.

    But while a longer sleep the next night can relieve the sleep pressure, it does not reverse the effects of the short sleep on our brain and body. Every night’s sleep is important for our body to recover and for our brain to process the events of that day. Spending a holiday “catching up” on sleep could help you feel more rested, but it is not a substitute for prioritising regular healthy sleep at home.

    All good things, including holidays, must come to an end. Unfortunately the perks of sleep tourism may end too.

    Our bodies do not like variability in the time of day that we sleep. The most common example of this is called “social jet lag”, where weekday sleep (getting up early to get to work or school) is vastly different to weekend sleep (late nights and sleep ins). This can result in a sleepy, grouchy start to the week on Monday. Sleep tourism may be similar, if you do not come back home with the intention to prioritise sleep.

    So we should be mindful that as well as sleeping well on holiday, it is important to optimise conditions at home to get consistent, adequate sleep every night.

    man looks at mobile phone in dark surroundings
    Good sleep hygiene doesn’t require a passport. Maridav/Shutterstock

    5 tips for having a sleep holiday at home

    An AI-powered mattress and a sleep butler at home might be the dream. But these features are not the only way we can optimise our sleep environment and give ourselves the best chance to get a good night’s sleep. Here are five ideas to start the night right:

    1. avoid bright artificial light in the evening (such as bright overhead lights, phones, laptops)

    2. make your bed as comfortable as possible with fresh pillows and a supportive mattress

    3. use black-out window coverings and maintain a cool room temperature for the ideal sleeping environment

    4. establish an evening wind-down routine, such as a warm shower and reading a book before bed or even a “sleepy girl mocktail

    5. use consistency as the key to a good sleep routine. Aim for a similar bedtime and wake time – even on weekends.

    Charlotte Gupta, Senior postdoctoral research fellow, Appleton Institute, HealthWise research group, CQUniversity Australia and Dean J. Miller, Adjunct Research Fellow, Appleton Institute of Behavioural Science, CQUniversity Australia

    This article is republished from The Conversation under a Creative Commons license. Read the original article.

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  • Anti-Inflammatory Pineapple Fried Rice

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    Fried rice is not most people’s go-to when one thinks of health food, but this one is. It’s packed with plenty of nutrients, many of which are anti-inflammatory, but the real star is the pineapple (with its high bromelain content and thus particularly potent benefits).

    You will need

    • 2½ cups cooked wholegrain basmati rice (you can use our Tasty Versatile Rice recipe if you don’t already have leftovers to use)
    • 1 cup pineapple chunks
    • ½ red onion, diced
    • 1 red bell pepper, diced
    • ½ cup sweetcorn
    • ½ peas
    • 3 green onions, chopped
    • 2 serrano peppers, chopped (omit if you don’t care for heat)
    • 2 tbsp coconut oil
    • 1 tbsp grated fresh ginger
    • 1 tbsp black pepper, coarse ground

    Method

    (we suggest you read everything at least once before doing anything)

    1) Fry the red onion, serrano peppers, and ginger in the coconut oil over a medium heat, stirring frequently, for about 3 minutes.

    2) Add the pineapple, bell pepper, sweetcorn, peas, and black pepper, stirring frequently, for about another 3 minutes.

    3) Add the rice, stirring gently but thoroughly, until fully reheated and mixed in.

    4) Serve, garnishing with the green onions.

    Enjoy!

    Want to learn more?

    For those interested in some of the science of what we have going on today:

    Take care!

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  • Voluntary assisted dying is different to suicide. But federal laws conflate them and restrict access to telehealth

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    Voluntary assisted dying is now lawful in every Australian state and will soon begin in the Australian Capital Territory.

    However, it’s illegal to discuss it via telehealth. That means people who live in rural and remote areas, or those who can’t physically go to see a doctor, may not be able to access the scheme.

    A federal private members bill, introduced to parliament last week, aims to change this. So what’s proposed and why is it needed?

    What’s wrong with the current laws?

    Voluntary assisted dying doesn’t meet the definition of suicide under state laws.

    But the Commonwealth Criminal Code prohibits the discussion or dissemination of suicide-related material electronically.

    This opens doctors to the risk of criminal prosecution if they discuss voluntary assisted dying via telehealth.

    Successive Commonwealth attorneys-general have failed to address the conflict between federal and state laws, despite persistent calls from state attorneys-general for necessary clarity.

    This eventually led to voluntary assistant dying doctor Nicholas Carr calling on the Federal Court of Australia to resolve this conflict. Carr sought a declaration to exclude voluntary assisted dying from the definition of suicide under the Criminal Code.

    In November, the court declared voluntary assisted dying was considered suicide for the purpose of the Criminal Code. This meant doctors across Australia were prohibited from using telehealth services for voluntary assisted dying consultations.

    Last week, independent federal MP Kate Chaney introduced a private members bill to create an exemption for voluntary assisted dying by excluding it as suicide for the purpose of the Criminal Code. Here’s why it’s needed.

    Not all patients can physically see a doctor

    Defining voluntary assisted dying as suicide in the Criminal Code disproportionately impacts people living in regional and remote areas. People in the country rely on the use of “carriage services”, such as phone and video consultations, to avoid travelling long distances to consult their doctor.

    Other people with terminal illnesses, whether in regional or urban areas, may be suffering intolerably and unable to physically attend appointments with doctors.

    The prohibition against telehealth goes against the principles of voluntary assisted dying, which are to minimise suffering, maximise quality of life and promote autonomy.

    Old hands hold young hands
    Some people aren’t able to attend doctors’ appointments in person.
    Jeffrey M Levine/Shutterstock

    Doctors don’t want to be involved in ‘suicide’

    Equating voluntary assisted dying with suicide has a direct impact on doctors, who fear criminal prosecution due to the prohibition against using telehealth.

    Some doctors may decide not to help patients who choose voluntary assisted dying, leaving patients in a state of limbo.

    The number of doctors actively participating in voluntary assisted dying is already low. The majority of doctors are located in metropolitan areas or major regional centres, leaving some locations with very few doctors participating in voluntary assisted dying.

    It misclassifies deaths

    In state law, people dying under voluntary assisted dying have the cause of their death registered as “the disease, illness or medical condition that was the grounds for a person to access voluntary assisted dying”, while the manner of dying is recorded as voluntary assisted dying.

    In contrast, only coroners in each state and territory can make a finding of suicide as a cause of death.

    In 2017, voluntary assisted dying was defined in the Coroners Act 2008 (Vic) as not a reportable death, and thus not suicide.

    The language of suicide is inappropriate for explaining how people make a decision to die with dignity under the lawful practice of voluntary assisted dying.

    There is ongoing taboo and stigma attached to suicide. People who opt for and are lawfully eligible to access voluntary assisted dying should not be tainted with the taboo that currently surrounds suicide.

    So what is the solution?

    The only way to remedy this problem is for the federal government to create an exemption in the Criminal Code to allow telehealth appointments to discuss voluntary assisted dying.

    Chaney’s private member’s bill is yet to be debated in federal parliament.

    If it’s unsuccessful, the Commonwealth attorney-general should pass regulations to exempt voluntary assisted dying as suicide.

    A cooperative approach to resolve this conflict of laws is necessary to ensure doctors don’t risk prosecution for assisting eligible people to access voluntary assisted dying, regional and remote patients have access to voluntary assisted dying, families don’t suffer consequences for the erroneous classification of voluntary assisted dying as suicide, and people accessing voluntary assisted dying are not shrouded with the taboo of suicide when accessing a lawful practice to die with dignity.

    Failure to change this will cause unnecessary suffering for patients and doctors alike.The Conversation

    Michaela Estelle Okninski, Lecturer of Law, University of Adelaide; Marc Trabsky, Associate professor, La Trobe University, and Neera Bhatia, Associate Professor in Law, Deakin University

    This article is republished from The Conversation under a Creative Commons license. Read the original article.

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  • How influencers and content creators discuss birth control on social media: What research shows
  • How they did it: STAT reporters expose how ailing seniors suffer when Medicare Advantage plans use algorithms to deny care

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    In a call with a long-time source, what stood out most to STAT reporters Bob Herman and Casey Ross was just how viscerally frustrated and angry the source was about an algorithm used by insurance companies to decide how long patients should stay in a nursing home or rehab facility before being sent home.­

    The STAT stories had a far-reaching impact:

    • The U.S. Senate Committee on Homeland Security and Government Affairs took a rare step of launching a formal investigation into the use of algorithms by the country’s three largest Medicare Advantage insurers.
    • Thirty-two House members urged the Centers for Medicare and Medicaid Services to increase the oversight of algorithms that health insurers use to make coverage decisions.
    • In a rare step, CMS launched its own investigation into UnitedHealth. It also stiffened its regulations on the use of proprietary algorithms and introduced plans to audit denials across Medicare Advantage plans in 2024.
    • Based on STAT’s reporting, Medicare Advantage beneficiaries filed two class-action lawsuits against UnitedHealth and its NaviHealth subsidiary, the maker of the algorithm, and against Humana, another major health insurance company that was also using the algorithm. 
    • Amid scrutiny, UnitedHealth renamed NaviHealth.

    The companies never allowed an on-the-record interview with their executives, but they acknowledged that STAT’s reporting was true, according to the news organization.

    Ross and Herman spoke with The Journalist’s Resource about their project and shared the following eight tips.

    1. Search public comments on proposed federal rules to find sources.

    Herman and Ross knew that the Centers for Medicare and Medicaid Services had put out a request for public comments, asking stakeholders within the Medicare Advantage industry how the system could improve.

    There are two main ways to get Medicare coverage: original Medicare, which is a fee-for-service health plan, and Medicare Advantage, which is a type of Medicare health plan offered by private insurance companies that contract with Medicare. Medicare Advantage plans have increasingly become popular in recent years.

    Under the Social Security Act, the public has the opportunity to submit comments on Medicare’s proposed national coverage determinations. CMS uses public comments to inform its proposed and final decisions. It responds in detail to all public comments when issuing a final decision.

    The reporters began combing through hundreds of public comments attached to a proposed Medicare Advantage rule that was undergoing federal review. NaviHealth, the UnitedHealth subsidiary and the maker of the algorithm, came up in many of the comments, which include the submitters’ information.

    “These are screaming all-caps comments to federal regulators about YOU NEED TO SOMETHING ABOUT THIS BECAUSE IT’S DISGUSTING,” Ross says.

    “The federal government is proposing rules and regulations all the time,” adds Herman, STAT’s business of health care reporter. “If someone’s going to take the time and effort to comment on them, they must have at least some knowledge of what’s going on. It’s just a great tool for any journalist to use to figure out more and who to contact.”

    The reporters also found several attorneys who had complained in the comments. They began reaching out to them, eventually gaining access to confidential documents and intermediaries who put them in touch with patients to show the human impact of the algorithm.

    2. Harness the power of the reader submission box.

    At the suggestion of an editor, the reporters added a reader submission box at the bottom of their first story, asking them to share their own experiences with Medicare Advantage denials.

    The floodgates opened. Hundreds of submissions arrived.

    By the end of their first story, Herman and Ross had confidential records and some patients, but they had no internal sources in the companies they were investigating, including Navihealth. The submission box led them to their first internal source.

    (Screenshot of STAT’s submission box.)

    The journalists also combed through LinkedIn and reached out to former and current employees, but the response rate was much lower than what they received via the submission box.

    The submission box “is just right there,” Herman says. “People who would want to reach out to us can do it right then and there after they read the story and it’s fresh in their minds.”

    3. Mine podcasts relevant to your story.

    The reporters weren’t sure if they could get interviews with some of the key figures in the story, including Tom Scully, the former head of the Centers for Medicare and Medicaid Services who drew up the initial plans for NaviHealth years before UnitedHealth acquired it.

    But Herman and another colleague had written previously about Scully’s private equity firm and they had found a podcast where he talked about his work. So Herman went back to the podcast — where he discovered Scully had also discussed NaviHealth.

    The reporters also used the podcast to get Scully on the phone for an interview.

    “So we knew we had a good jumping off point there to be like, ‘OK, you’ve talked about NaviHealth on a podcast, let’s talk about this,’” Herman says. “I think that helped make him more willing to speak with us.”

    4. When covering AI initiatives, proceed with caution.

    “A source of mine once said to me, ‘AI is not magic,’” Ross says. “People need to just ask questions about it because AI has this aura about it that it’s objective, that it’s accurate, that it’s unquestionable, that it never fails. And that is not true.”

    AI is not a neutral, objective machine, Ross says. “It’s based on data that’s fed into it and people need to ask questions about that data.”

    He suggests several questions to ask about the data behind AI tools:

    • Where does the data come from?
    • Who does it represent?
    • How is this tool being applied?
    • Do the people to whom the tool is being applied match the data on which it was trained? “If racial groups or genders or age of economic situations are not adequately represented in the training set, then there can be an awful lot of bias in the output of the tool and how it’s applied,” Ross says.
    • How is the tool applied within the institution? Are people being forced to forsake their judgment and their own ability to do their jobs to follow the algorithm?

    5. Localize the story.

    More than half of all Medicare beneficiaries have Medicare Advantage and there’s a high likelihood that there are multiple Medicare Advantage plans in every county across the nation.

    “So it’s worth looking to see how Medicare Advantage plans are growing in your area,” Herman says.

    Finding out about AI use will most likely rely on shoe-leather reporting of speaking with providers, nursing homes and rehab facilities, attorneys and patients in your community, he says. Another source is home health agencies, which may be caring for patients who were kicked out of nursing homes and rehab facilities too soon because of a decision by an algorithm.

    The anecdote that opens their first story involves a small regional health insurer in Wisconsin, which was using NaviHealth and a contractor to manage post-acute care services, Ross says.

    “It’s happening to people in small communities who have no idea that this insurer they’ve signed up with is using this tool made by this other company that operates nationally,” Ross says.

    There are also plenty of other companies like NaviHealth that are being used by Medicare Advantage plans, Herman says. “So it’s understanding which Medicare Advantage plans are being sold in your area and then which post-acute management companies they’re using,” he adds.

    Some regional insurers have online documents that show which contractors they use to evaluate post-acute care services.

    6. Get familiar with Medicare’s appeals databases

    Medicare beneficiaries can contest Medicare Advantage denials through a five-stage process, which can last months to years. The appeals can be filed via the Office of Medicare Hearings and Appeals.

    “Between 2020 and 2022, the number of appeals filed to contest Medicare Advantage denials shot up 58%, with nearly 150,000 requests to review a denial filed in 2022, according to a federal database,” Ross and Herman write in their first story. “Federal records show most denials for skilled nursing care are eventually overturned, either by the plan itself or an independent body that adjudicates Medicare appeals.”

    There are several sources to find appeals data. Be mindful that the cases themselves are not public to protect patient privacy, but you can find the number of appeals filed and the rationale for decisions.

    CMS has two quality improvement organizations, or QIOs, Livanta and Kepro, which are required to file free, publicly-available annual reports, about the cases they handle, Ross says.

    Another company, Maximus, a Quality Improvement Contractor, also files reports on prior authorization cases it adjudicates for Medicare. The free annual reports include data on raw numbers of cases and basic information about the percentage denials either overturned or upheld on appeal, Ross explains.

    CMS also maintains its own database on appeals for Medicare Part C (Medicare Advantage plans) and Part D, which covers prescription drugs, although the data is not complete, Ross explains.

    7. Give your editor regular updates.

    “Sprinkle the breadcrumbs in front of your editors,” Ross says.

    “If you wrap your editors in the process, you’re more likely to be able to get to the end of [the story] before they say, ‘That’s it! Give me your copy,’” Ross says.

    8. Get that first story out.

    “You don’t have to know everything before you write that first story,” Ross says. “Because with that first story, if it has credibility and it resonates with people, sources will come forward and sources will continue to come forward.”

    Read the stories

    Denied by AI: How Medicare Advantage plans use algorithms to cut off care for seniors in need

    How UnitedHealth’s acquisition of a popular Medicare Advantage algorithm sparked internal dissent over denied care

    UnitedHealth pushed employees to follow an algorithm to cut off Medicare patients’ rehab care

    UnitedHealth used secret rules to restrict rehab care for seriously ill Medicare Advantage patients

    This article first appeared on The Journalist’s Resource and is republished here under a Creative Commons license.

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  • 10 Ways To Delay Aging

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    This is Dr. Colin Rose; he is a Senior Associate of the Royal Society of Medicine. He’s also a main contributor to EduScience, a programme funded by the E.U. which is designed to enhance the teaching and learning of science in schools in Europe.

    His most recent work has been about aging—and how to delay it. We also reviewed his latest book, here:

    Delay Ageing – by Dr. Colin Rose

    So, what does he want us to know? The key lies in his compilation of ten ways in which we age on a cellular level, and what we can to do slow each one of those:

    Damage to DNA accumulates

    While DNA can get damaged without any external stimulus to cause that, there are a lot of modifiable factors that we can do to reduce DNA damage. The list is easy: if it causes cancer, it causes aging.

    Thus, check out: Stop Cancer 20 Years Ago

    Cells become senescent

    Our cells are replaced all the time; some sooner than others, but all of them at some point. The problem occurs when cells are outliving their usefulness. If a cell becomes completely immortal, that is cancer, but happily most don’t. Nevertheless, having senescent (aging) cells in the body means that those senescent cells are what get copied forwards by mitosis, and our DNA becomes like a photocopy of a tattered old photocopy of a tattered old photocopy. Which, needless to say, is not good for our health. So, the best thing to do is to kill them earlier:

    Yes, really: Fisetin: The Anti-Aging Assassin

    Mitochondria become dysfunctional

    Without properly functional mitochondria, no living human cell can do its job properly.

    Options: 7 Ways To Boost Mitochondrial Health To Fight Disease

    Beneficial genes are switched off, harmful genes are on

    It’s easy to think of our genes as being immutable, but epigenetics means that our environment (amongst other factors) can mean that our gene expression changes.

    Imagine it this way: your genes are a set of instructions for your body. However, your body will act or not on those instructions, depending on other factors. Hormones often play a big part in this; for example sex hormones tell the body which set of genetic instructions to read (and thus what kind of body to build/rebuild), and cortisol or oxytocin can tell the body which set of contingency plans to activate or suppress (respectively). A milder example is gray hair; genes have the program for it, but many other factors inform the body when, if, and how to do it.

    Of more concern when it comes to aging is what goes on with more critical systems, such as the brain, in which the aforementioned DNA damage can cause unhelpful instructions to get interpreted, resulting in epigenetic changes that in turn facilitate age-related degeneration.

    As to what can be done, see : Klotho: Unzipping The Genes Of Aging?

    Stem cells become exhausted

    Stem cells can become different kinds of cells, and thus they’re very useful for maintaining a healthy body. However, they get depleted with age. We can slow down the rate of loss, though; for example, intermittent fasting can help:

    Per Dr. Li’s 5 Ways To Beat Cancer (And Other Diseases)

    And for more detail, see:

    Doctor’s Tip: Regeneration (stem cells) — one of your body’s five defense systems

    (complete with lists of foods to eat or avoid for stem cell health)

    Cells fail to communicate properly

    Cells need to talk to each other constantly, to continue doing their jobs. We are one big organism, after all, and not a haphazard colony of the countless cells that constitute such. However, cell signalling gets worse with age, which in turn precipitates others age-related problems. Fortunately, there are nutrients that can improve cellular communication.

    For example: PS, We Love You ← this is about phosphatidylserine, also called “PS”

    Telomeres become shorter

    These protective caps on our DNA suffer the wear-and-tear so that our DNA doesn’t have to. However, as they get shorter, the DNA can start suffering damage. For this reason, telomere length is considered one of the most “Gold Standard” markers of cellular aging.

    Here’s what can be done for that: The Stress Prescription (Against Aging!)

    The body fails to sense nutritional intake properly

    This is mostly about insulin signalling (though problems can occur in other systems too, but we only have so much room here), so it’s important to take care of that.

    See: Turn Back The Clock On Insulin Resistance

    Proteins accumulate errors

    This is due to DNA damage, of course, but there are specific things that can reduce protein error accumulation; see for example:

    A quick fix – preventing protein errors extends lifespan

    See also: Rapamycin Can Slow Aging By 20% (But Watch Out)

    The microbiome becomes unbalanced

    We at 10almonds often mention that gut health affects pretty much every other kind of health, and it’s true for aging as well. So, take care of that microbiome!

    Here’s a primer: Gut Health 101

    Want to know more about delaying aging beyond the cellular level?

    Check out: Age & Aging: What Can (And Can’t) We Do About It?

    Take care!

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  • Lobster vs Crab – Which is Healthier?

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    Our Verdict

    When comparing lobster to crab, we picked the crab.

    Why?

    Generally speaking, most seafood is healthy in moderation (assuming it’s well-prepared, not poisonous, and you don’t have an allergy), and for most people, these two sea creatures are indeed considered a reasonable part of a healthy balanced diet.

    In terms of macros, they’re comparable in protein, and technically crab has about 2x the fat, but in both cases it’s next to nothing, so 2x almost nothing is still almost nothing. And, if we break down the lipids profiles, crab has a sufficiently smaller percentage of saturated fat (compared to monounsaturated and polyunsaturated), that crab actually has less saturated fat than lobster. In balance, the category of macros is either a tie or a slight win for crab, depending on your personal priorities.

    When it comes to vitamins, crab wins easily with more of vitamins A, B1, B2, B6, B9, B12, and C, in most cases by considerable margins (we’re talking multiples of what lobster has). Lobster, meanwhile, has more of vitamin B3 (tiny margin) and vitamin B5 (pantothenic acid, as in, the vitamin that’s in basically everything edible, and thus almost impossible to be deficient in unless literally starving).

    The minerals scene is more balanced; lobster has more calcium, copper, manganese, and selenium, while crab has more iron, magnesium, phosphorus, potassium, and zinc. The margins are comparable from one creature to another, so all in all the 4:5 score means a modest win for crab.

    Both of these creatures are good sources of omega-3 fatty acids, but crab is better.

    Lobster and crab are both somewhat high in cholesterol, but crab is the relatively lower of the two.

    In short: for most people most of the time, both are fine to enjoy in moderation, but if picking one, crab is the healthier by most metrics.

    Want to learn more?

    You might like to read:

    Shrimp vs Caviar – Which is Healthier?

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