This Is Your Brain on Food – by Dr. Uma Naidoo

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“Diet will fix your brain” is a bold claim that often comes from wishful thinking and an optimistic place where anecdote is louder than evidence. But, diet does incontrovertibly also affect brain health. So, what does Dr. Naidoo bring to the table?

The author is a Harvard-trained psychiatrist, a professional chef who graduated with her culinary school’s most coveted award, and a trained-and-certified nutritionist. Between those three qualifications, it’s safe to she knows her stuff when it comes to the niche that is nutritional psychiatry. And it shows.

She takes us through the neurochemistry involved, what chemicals are consumed, made, affected, inhibited, upregulated, etc, what passes through the blood-brain barrier and what doesn’t, what part the gut really plays in its “second brain” role, and how we can leverage that—as well as mythbusting a lot of popular misconceptions about certain foods and moods.

There’s hard science in here, but presented in quite a pop-science way, making for a very light yet informative read.

Bottom line: if you’d like to better understand what your food is doing to your brain (and what it could be doing instead), then this is a top-tier book for you!

Click here to check out This Is Your Brain On Food, and get to know yours!

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    The Pain-Free Plan: A science-centric, information-dense guide to pain management. Become an informed expert on your own pain and reduce it effectively.

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  • Semaglutide for Weight Loss?

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    Semaglutide for weight loss?

    Semaglutide is the new kid on the weight-loss block, but it’s looking promising (with some caveats!).

    Most popularly by brand names Ozempic and Wegovy, it was first trialled to help diabetics*, and is now sought-after by the rest of the population too. So far, only Wegovy is FDA-approved for weight loss. It contains more semaglutide than Ozempic, and was developed specifically for weight loss, rather than for diabetes.

    *Specifically: diabetics with type 2 diabetes. Because it works by helping the pancreas to make insulin, it’s of no help whatsoever to T1D folks, sadly. If you’re T1D and reading this though, today’s book of the day is for you!

    First things first: does it work as marketed for diabetes?

    It does! At a cost: a very common side effect is gastrointestinal problems—same as for tirzepatide, which (like semaglutide) is a GLP-1 agonist, meaning it works the same way. Here’s how they measure up:

    As you can see, both of them work wonders for pancreatic function and insulin sensitivity!

    And, both of them were quite unpleasant for around 20% of participants:

    ❝Tirzepatide, oral and SC semaglutide has a favourable efficacy in treating T2DM. Gastrointestinal adverse events were highly recorded in tirzepatide, oral and SC semaglutide groups.❞

    ~ Zaazouee et al., 2022

    What about for weight loss, if not diabetic?

    It works just the same! With just the same likelihood of gastro-intestinal unpleasantries, though. There’s a very good study that was done with 1,961 overweight adults; here it is:

    Once-Weekly Semaglutide in Adults with Overweight or Obesity

    The most interesting things here are the positive results and the side effects:

    ❝The mean change in body weight from baseline to week 68 was −14.9% in the semaglutide group as compared with −2.4% with placebo, for an estimated treatment difference of −12.4 percentage points (95% confidence interval [CI], −13.4 to −11.5; P<0.001).❞

    ~ Wilding et al., 2021

    In other words: if you take this, you’re almost certainly going to get something like 6x better weight loss results than doing the same thing without it.

    ❝Nausea and diarrhea were the most common adverse events with semaglutide; they were typically transient and mild-to-moderate in severity and subsided with time. More participants in the semaglutide group than in the placebo group discontinued treatment owing to gastrointestinal events (59 [4.5%] vs. 5 [0.8%])❞

    ~ ibid.

    In other words: you have about a 3% chance of having unpleasant enough side effects that you don’t want to continue treatment (contrast this with the 20%ish chance of unpleasant side effects of any extent)!

    Any other downsides we should know about?

    If you stop taking it, weight regain is likely. For example, a participant in one of the above-mentioned studies who lost 22% of her body weight with the drug’s help, says:

    ❝Now that I am no longer taking the drug, unfortunately, my weight is returning to what it used to be. It felt effortless losing weight while on the trial, but now it has gone back to feeling like a constant battle with food. I hope that, if the drug can be approved for people like me, my [doctor] will be able to prescribe the drug for me in the future.❞

    ~ Jan, a trial participant at UCLH

    Source: Gamechanger drug for treating obesity cuts body weight by 20% <- University College London Hospitals (NHS)

    Is it injection-only, or is there an oral option?

    An oral option exists, but (so far) is on the market only in the form of Rybelsus, another (slightly older) drug containing semaglutide, and it’s (so far) only FDA-approved for diabetes, not for weight loss. See:

    A new era for oral peptides: SNAC and the development of oral semaglutide for the treatment of type 2 diabetes ← for the science

    FDA approves first oral GLP-1 treatment for type 2 diabetes ← For the FDA statement

    Where can I get these?

    Availability and prescribing regulations vary by country (because the FDA’s authority stops at the US borders), but here is the website for each of them if you’d like to learn more / consider if they might help you:

    Rybelsus / Ozempic / Wegovy

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  • Hero Homemade Hummus

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    If you only have store-bought hummus at home, you’re missing out. The good news is that hummus is very easy to make, and highly customizable—so once you know how to make one, you can make them all, pretty much. And of course, it’s one of the healthiest dips out there!

    You will need

    • 2 x 140z/400g tins chickpeas
    • 4 heaped tbsp tahini
    • 3 tbsp extra virgin olive oil
    • Juice of 1 lemon
    • 1 tsp black pepper, coarse ground
    • Optional, but recommended: your preferred toppings/flavorings. Examples to get you started include olives, tomatoes, garlic, red peppers, red onion, chili, cumin, paprika (please do not put everything in one hummus; if unsure about pairings, select just one optional ingredient per hummus for now)

    Method

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

    1) Drain the chickpeas, but keep the chickpea water from them (also called aquafaba; it has many culinary uses beyond the scope of today’s recipe, but for now, just keep it to one side).

    2) Add the chickpeas, ⅔ of the aquafaba, the tahini, the olive oil, the lemon juice, the black pepper, and any optional extra flavoring(s) that you don’t want to remain chunky. Blend until smooth; if it becomes to thick, add a little more aquafaba and blend again until it’s how you want it.

    3) Transfer the hummus to a bowl, and add any extra toppings.

    4) Repeat the above steps for each different kind of hummus you want to make.

    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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  • Samosa Spiced Surprise

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    You know what’s best about samosas? It’s not actually the fried pastry; that’s just what holds it together. If you were to try eating sheets of pastry alone, it would not be much fun. But, the spiced vegetable filling? Now we’re talking! So, this recipe takes what’s best about samosas, and makes them into healthy snack-sized patties.

    You will need

    • Extra virgin olive oil, or coconut oil (per your preference) for cooking
    • 4 medium potatoes, boiled, peeled, and mashed
    • 1 medium onion, diced
    • 1 cup peas
    • 1 carrot, finely chopped
    • ½ cup garbanzo bean flour (chickpea flour, gram flour, whatever your supermarket calls it)
    • ¼ cup fresh cilantro, chopped (substitute parsley if you have the soap gene)
    • ¼ bulb garlic, minced
    • 1 jalapeño pepper, chopped
    • 1 tbsp ground cumin
    • 2 tsp garam masala
    • 1 tsp ground coriander
    • 1 tsp ground turmeric
    • 1 tsp ground black pepper

    Method

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

    1) Fry the onion until it is becoming soft and translucent (3–5 minutes).

    2) Add the spices (the garlic, both kinds of pepper, cumin, coriander, turmeric, and the garam masala), stirring in well

    3) Add the carrot and peas, stirring and cooking until just becoming soft (probably another 3–5 minutes, depending on the heat, how small you chopped the carrot, and whether the peas were frozen or fresh). Take it off the heat.

    4) Mix the potato, chickpea flour, and cilantro in a bowl, and carefully add everything from the pan, mixing that in thoroughly too.

    5) Shape into patties, and fry them on each side until browned and crispy.

    6) Serve as part of a buffet, or perhaps as an appetizer—raita is a fine accompaniment option.

    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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Related Posts

  • To Medicate or Not? That is the Question! – by Dr. Asha Bohannon
  • Federal Panel Prescribes New Mental Health Strategy To Curb Maternal Deaths

    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.

    BRIDGEPORT, Conn. — Milagros Aquino was trying to find a new place to live and had been struggling to get used to new foods after she moved to Bridgeport from Peru with her husband and young son in 2023.

    When Aquino, now 31, got pregnant in May 2023, “instantly everything got so much worse than before,” she said. “I was so sad and lying in bed all day. I was really lost and just surviving.”

    Aquino has lots of company.

    Perinatal depression affects as many as 20% of women in the United States during pregnancy, the postpartum period, or both, according to studies. In some states, anxiety or depression afflicts nearly a quarter of new mothers or pregnant women.

    Many women in the U.S. go untreated because there is no widely deployed system to screen for mental illness in mothers, despite widespread recommendations to do so. Experts say the lack of screening has driven higher rates of mental illness, suicide, and drug overdoses that are now the leading causes of death in the first year after a woman gives birth.

    “This is a systemic issue, a medical issue, and a human rights issue,” said Lindsay R. Standeven, a perinatal psychiatrist and the clinical and education director of the Johns Hopkins Reproductive Mental Health Center.

    Standeven said the root causes of the problem include racial and socioeconomic disparities in maternal care and a lack of support systems for new mothers. She also pointed a finger at a shortage of mental health professionals, insufficient maternal mental health training for providers, and insufficient reimbursement for mental health services. Finally, Standeven said, the problem is exacerbated by the absence of national maternity leave policies, and the access to weapons.

    Those factors helped drive a 105% increase in postpartum depression from 2010 to 2021, according to the American Journal of Obstetrics & Gynecology.

    For Aquino, it wasn’t until the last weeks of her pregnancy, when she signed up for acupuncture to relieve her stress, that a social worker helped her get care through the Emme Coalition, which connects girls and women with financial help, mental health counseling services, and other resources.

    Mothers diagnosed with perinatal depression or anxiety during or after pregnancy are at about three times the risk of suicidal behavior and six times the risk of suicide compared with mothers without a mood disorder, according to recent U.S. and international studies in JAMA Network Open and The BMJ.

    The toll of the maternal mental health crisis is particularly acute in rural communities that have become maternity care deserts, as small hospitals close their labor and delivery units because of plummeting birth rates, or because of financial or staffing issues.

    This week, the Maternal Mental Health Task Force — co-led by the Office on Women’s Health and the Substance Abuse and Mental Health Services Administration and formed in September to respond to the problem — recommended creating maternity care centers that could serve as hubs of integrated care and birthing facilities by building upon the services and personnel already in communities.

    The task force will soon determine what portions of the plan will require congressional action and funding to implement and what will be “low-hanging fruit,” said Joy Burkhard, a member of the task force and the executive director of the nonprofit Policy Center for Maternal Mental Health.

    Burkhard said equitable access to care is essential. The task force recommended that federal officials identify areas where maternity centers should be placed based on data identifying the underserved. “Rural America,” she said, “is first and foremost.”

    There are shortages of care in “unlikely areas,” including Los Angeles County, where some maternity wards have recently closed, said Burkhard. Urban areas that are underserved would also be eligible to get the new centers.

    “All that mothers are asking for is maternity care that makes sense. Right now, none of that exists,” she said.

    Several pilot programs are designed to help struggling mothers by training and equipping midwives and doulas, people who provide guidance and support to the mothers of newborns.

    In Montana, rates of maternal depression before, during, and after pregnancy are higher than the national average. From 2017 to 2020, approximately 15% of mothers experienced postpartum depression and 27% experienced perinatal depression, according to the Montana Pregnancy Risk Assessment Monitoring System. The state had the sixth-highest maternal mortality rate in the country in 2019, when it received a federal grant to begin training doulas.

    To date, the program has trained 108 doulas, many of whom are Native American. Native Americans make up 6.6% of Montana’s population. Indigenous people, particularly those in rural areas, have twice the national rate of severe maternal morbidity and mortality compared with white women, according to a study in Obstetrics and Gynecology.

    Stephanie Fitch, grant manager at Montana Obstetrics & Maternal Support at Billings Clinic, said training doulas “has the potential to counter systemic barriers that disproportionately impact our tribal communities and improve overall community health.”

    Twelve states and Washington, D.C., have Medicaid coverage for doula care, according to the National Health Law Program. They are California, Florida, Maryland, Massachusetts, Michigan, Minnesota, Nevada, New Jersey, Oklahoma, Oregon, Rhode Island, and Virginia. Medicaid pays for about 41% of births in the U.S., according to the Centers for Disease Control and Prevention.

    Jacqueline Carrizo, a doula assigned to Aquino through the Emme Coalition, played an important role in Aquino’s recovery. Aquino said she couldn’t have imagined going through such a “dark time alone.” With Carrizo’s support, “I could make it,” she said.

    Genetic and environmental factors, or a past mental health disorder, can increase the risk of depression or anxiety during pregnancy. But mood disorders can happen to anyone.

    Teresa Martinez, 30, of Price, Utah, had struggled with anxiety and infertility for years before she conceived her first child. The joy and relief of giving birth to her son in 2012 were short-lived.

    Without warning, “a dark cloud came over me,” she said.

    Martinez was afraid to tell her husband. “As a woman, you feel so much pressure and you don’t want that stigma of not being a good mom,” she said.

    In recent years, programs around the country have started to help doctors recognize mothers’ mood disorders and learn how to help them before any harm is done.

    One of the most successful is the Massachusetts Child Psychiatry Access Program for Moms, which began a decade ago and has since spread to 29 states. The program, supported by federal and state funding, provides tools and training for physicians and other providers to screen and identify disorders, triage patients, and offer treatment options.

    But the expansion of maternal mental health programs is taking place amid sparse resources in much of rural America. Many programs across the country have run out of money.

    The federal task force proposed that Congress fund and create consultation programs similar to the one in Massachusetts, but not to replace the ones already in place, said Burkhard.

    In April, Missouri became the latest state to adopt the Massachusetts model. Women on Medicaid in Missouri are 10 times as likely to die within one year of pregnancy as those with private insurance. From 2018 through 2020, an average of 70 Missouri women died each year while pregnant or within one year of giving birth, according to state government statistics.

    Wendy Ell, executive director of the Maternal Health Access Project in Missouri, called her service a “lifesaving resource” that is free and easy to access for any health care provider in the state who sees patients in the perinatal period.

    About 50 health care providers have signed up for Ell’s program since it began. Within 30 minutes of a request, the providers can consult over the phone with one of three perinatal psychiatrists. But while the doctors can get help from the psychiatrists, mental health resources for patients are not as readily available.

    The task force called for federal funding to train more mental health providers and place them in high-need areas like Missouri. The task force also recommended training and certifying a more diverse workforce of community mental health workers, patient navigators, doulas, and peer support specialists in areas where they are most needed.

    A new voluntary curriculum in reproductive psychiatry is designed to help psychiatry residents, fellows, and mental health practitioners who may have little or no training or education about the management of psychiatric illness in the perinatal period. A small study found that the curriculum significantly improved psychiatrists’ ability to treat perinatal women with mental illness, said Standeven, who contributed to the training program and is one of the study’s authors.

    Nancy Byatt, a perinatal psychiatrist at the University of Massachusetts Chan School of Medicine who led the launch of the Massachusetts Child Psychiatry Access Program for Moms in 2014, said there is still a lot of work to do.

    “I think that the most important thing is that we have made a lot of progress and, in that sense, I am kind of hopeful,” Byatt said.

    Cheryl Platzman Weinstock’s reporting is supported by a grant from the National Institute for Health Care Management Foundation.

    KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.

    Subscribe to KFF Health News’ free Morning Briefing.

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  • Women are less likely to receive CPR than men. Training on manikins with breasts could help

    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.

    If someone’s heart suddenly stops beating, they may only have minutes to live. Doing CPR (cardiopulmonary resusciation) can increase their chances of survival. CPR makes sure blood keeps pumping, providing oxygen to the brain and vital organs until specialist treatment arrives.

    But research shows bystanders are less likely to intervene to perform CPR when that person is a woman. A recent Australian study analysed 4,491 cardiac arrests between 2017–19 and found bystanders were more likely to give CPR to men (74%) than women (65%).

    Could this partly be because CPR training dummies (known as manikins) don’t have breasts? Our new research looked at manikins available worldwide to train people in performing CPR and found 95% are flat-chested.

    Anatomically, breasts don’t change CPR technique. But they may influence whether people attempt it – and hesitation in these crucial moments could mean the difference between life and death.

    Pixel-Shot/Shutterstock

    Heart health disparities

    Cardiovascular diseases – including heart disease, stroke and cardiac arrest – are the leading cause of death for women across the world.

    But if a woman has a cardiac arrest outside hospital (meaning her heart stops pumping properly), she is 10% less likely to receive CPR than a man. Women are also less likely to survive CPR and more likely to have brain damage following cardiac arrests.

    People cross a busy street in lined with trees in Melbourne.
    Bystanders are less likely to intervene if a woman needs CPR, compared to a man. doublelee/Shutterstock

    These are just some of many unequal health outcomes women experience, along with transgender and non-binary people. Compared to men, their symptoms are more likely to be dismissed or misdiagnosed, or it may take longer for them to receive a diagnosis.

    Bystander reluctance

    There is also increasing evidence women are less likely to receive CPR compared to men.

    This may be partly due to bystander concerns they’ll be accused of sexual harassment, worry they might cause damage (in some cases based on a perception women are more “frail”) and discomfort about touching a woman’s breast.

    Bystanders may also have trouble recognising a woman is experiencing a cardiac arrest.

    Even in simulations of scenarios, researchers have found those who intervened were less likely to remove a woman’s clothing to prepare for resuscitation, compared to men. And women were less likely to receive CPR or defibrillation (an electric charge to restart the heart) – even when the training was an online game that didn’t involve touching anyone.

    There is evidence that how people act in resuscitation training scenarios mirrors what they do in real emergencies. This means it’s vital to train people to recognise a cardiac arrest and be prepared to intervene, across genders and body types.

    Skewed to male bodies

    Most CPR training resources feature male bodies, or don’t specify a sex. If the bodies don’t have breasts, it implies a male default.

    For example, a 2022 study looking at CPR training across North, Central and South America, found most manikins available were white (88%), male (94%) and lean (99%).

    A woman's hands press down on a male manikin torso wearing a blue jacket.
    It’s extremely rare for a manikin to have breasts or a larger body. M Isolation photo/Shutterstock

    These studies reflect what we see in our own work, training other health practitioners to do CPR. We have noticed all the manikins available to for training are flat-chested. One of us (Rebecca) found it difficult to find any training manikins with breasts.

    A single manikin with breasts

    Our new research investigated what CPR manikins are available and how diverse they are. We identified 20 CPR manikins on the global market in 2023. Manikins are usually a torso with a head and no arms.

    Of the 20 available, five (25%) were sold as “female” – but only one of these had breasts. That means 95% of available CPR training manikins were flat-chested.

    We also looked at other features of diversity, including skin tone and larger bodies. We found 65% had more than one skin tone available, but just one was a larger size body. More research is needed on how these aspects affect bystanders in giving CPR.

    Breasts don’t change CPR technique

    CPR technique doesn’t change when someone has breasts. The barriers are cultural. And while you might feel uncomfortable, starting CPR as soon as possible could save a life.

    Signs someone might need CPR include not breathing properly or at all, or not responding to you.

    To perform effective CPR, you should:

    • put the heel of your hand on the middle of their chest
    • put your other hand on the top of the first hand, and interlock fingers (keep your arms straight)
    • press down hard, to a depth of about 5cm before releasing
    • push the chest at a rate of 100-120 beats per minute (you can sing a song) in your head to help keep time!)

    https://www.youtube.com/embed/Plse2FOkV4Q?wmode=transparent&start=94 An example of how to do CPR – with a flat-chested manikin.

    What about a defibrillator?

    You don’t need to remove someone’s bra to perform CPR. But you may need to if a defibrillator is required.

    A defibrillator is a device that applies an electric charge to restore the heartbeat. A bra with an underwire could cause a slight burn to the skin when the debrillator’s pads apply the electric charge. But if you can’t remove the bra, don’t let it delay care.

    What should change?

    Our research highlights the need for a range of CPR training manikins with breasts, as well as different body sizes.

    Training resources need to better prepare people to intervene and perform CPR on people with breasts. We also need greater education about women’s risk of getting and dying from heart-related diseases.

    Jessica Stokes-Parish, Assistant Professor in Medicine, Bond University and Rebecca A. Szabo, Honorary Senior Lecturer in Critical Care and Obstetrics, Gynaecology and Newborn Health, The University of Melbourne

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

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  • The Meds That Impair Decision-Making

    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.

    Impairment to cognitive function is often comorbid with Parkinson’s disease. That is to say: it’s not a symptom of Parkinson’s, but it often occurs in the same people. This may seem natural: after all, both are strongly associated with aging.

    However, recent (last month, at time of writing) research has brought to light a very specific way in which medication for Parkinson’s may impair the ability to make sound decisions.

    Obviously, this is a big deal, because it can affect healthcare decisions, financial decisions, and more—greatly impacting quality of life.

    See also: Age-related differences in financial decision-making and social influence

    (in which older people were found more likely to be influenced by the impulsive financial preferences of others than their younger counterparts, when other factors are controlled for)

    As for how this pans out when it comes to Parkinson’s meds…

    Pramipexole (PPX)

    This drug can, due to an overlap in molecular shape, mimic dopamine in the brains of people who don’t have enough—such as those with Parkinson’s disease. This (as you might expect) helps alleviate Parkinson’s symptoms.

    However, researchers found that mice treated with PPX and given a touch-screen based gambling game picked the high-risk, high reward option much more often. In the hopes of winning strawberry milkshake (the reward), they got themselves subjected to a lot of blindingly-bright flashing lights (the risk, to which untreated mice were much more averse, as this is very stressful for a mouse).

    You may be wondering: did the mice have Parkinson’s?

    The answer: kind of; they had been subjected to injections with 6-hydroxydopamine, which damages dopamine-producing neurons similarly to Parkinson’s.

    This result was somewhat surprising, because one would expect that a mouse whose depleted dopamine was being mimicked by a stand-in (thus, doing much of the job of dopamine) would be less swayed by the allure of gambling (a high-dopamine activity), since gambling is typically most attractive to those who are desperate to find a crumb of dopamine somewhere.

    They did find out why this happened, by the way, the PPX hyperactivated the external globus pallidus (also called GPe, and notwithstanding the name, this is located deep inside the brain). Chemically inhibiting this area of the brain reduced the risk-taking activity of the mice.

    This has important implications for Parkinson’s patients, because:

    • on an individual level, it means this is a side effect of PPX to be aware of
    • on a research-and-development level, it means drugs need to be developed that specifically target the GPe, to avoid/mitigate this side effect.

    You can read the study in full here:

    Pramipexole Hyperactivates the External Globus Pallidus and Impairs Decision-Making in a Mouse Model of Parkinson’s Disease

    Don’t want to get Parkinson’s in the first place?

    While nothing is a magic bullet, there are things that can greatly increase or decrease Parkinson’s risk. Here’s a big one, as found recently (last week, at the time of writing):

    Air Pollution and Parkinson’s Disease in a Population-Based Study

    Also: knowing about its onset sooner rather than later is scary, but beneficial. So, with that in mind…

    Recognize The Early Symptoms Of Parkinson’s Disease

    Finally, because Parkinson’s disease is theorized to be caused by a dysfunction of alpha-synuclein clearance (much like the dysfunction of beta-amyloid clearance, in the case of Alzheimer’s disease), this means that having a healthy glymphatic system (glial cells doing the same clean-up job as the lymphatic system, but in the brain) is critical:

    How To Clean Your Brain (Glymphatic Health Primer)

    Take care!

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