Why are tall people more likely to get cancer? What we know, don’t know and suspect
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People who are taller are at greater risk of developing cancer. The World Cancer Research Fund reports there is strong evidence taller people have a higher chance of of developing cancer of the:
- pancreas
- large bowel
- uterus (endometrium)
- ovary
- prostate
- kidney
- skin (melanoma) and
- breast (pre- and post-menopausal).
But why? Here’s what we know, don’t know and suspect.
A well established pattern
The UK Million Women Study found that for 15 of the 17 cancers they investigated, the taller you are the more likely you are to have them.
It found that overall, each ten-centimetre increase in height increased the risk of developing a cancer by about 16%. A similar increase has been found in men.
Let’s put that in perspective. If about 45 in every 10,000 women of average height (about 165 centimetres) develop cancer each year, then about 52 in each 10,000 women who are 175 centimetres tall would get cancer. That’s only an extra seven cancers.
So, it’s actually a pretty small increase in risk.
Another study found 22 of 23 cancers occurred more commonly in taller than in shorter people.
Why?
The relationship between height and cancer risk occurs across ethnicities and income levels, as well as in studies that have looked at genes that predict height.
These results suggest there is a biological reason for the link between cancer and height.
While it is not completely clear why, there are a couple of strong theories.
The first is linked to the fact a taller person will have more cells. For example, a tall person probably has a longer large bowel with more cells and thus more entries in the large bowel cancer lottery than a shorter person.
Scientists think cancer develops through an accumulation of damage to genes that can occur in a cell when it divides to create new cells.
The more times a cell divides, the more likely it is that genetic damage will occur and be passed onto the new cells.
The more damage that accumulates, the more likely it is that a cancer will develop.
A person with more cells in their body will have more cell divisions and thus potentially more chance that a cancer will develop in one of them.
Some research supports the idea having more cells is the reason tall people develop cancer more and may explain to some extent why men are more likely to get cancer than women (because they are, on average, taller than women).
However, it’s not clear height is related to the size of all organs (for example, do taller women have bigger breasts or bigger ovaries?).
One study tried to assess this. It found that while organ mass explained the height-cancer relationship in eight of 15 cancers assessed, there were seven others where organ mass did not explain the relationship with height.
It is worth noting this study was quite limited by the amount of data they had on organ mass.
Another theory is that there is a common factor that makes people taller as well as increasing their cancer risk.
One possibility is a hormone called insulin-like growth factor 1 (IGF-1). This hormone helps children grow and then continues to have an important role in driving cell growth and cell division in adults.
This is an important function. Our bodies need to produce new cells when old ones are damaged or get old. Think of all the skin cells that come off when you use a good body scrub. Those cells need to be replaced so our skin doesn’t wear out.
However, we can get too much of a good thing. Some studies have found people who have higher IGF-1 levels than average have a higher risk of developing breast or prostate cancer.
But again, this has not been a consistent finding for all cancer types.
It is likely that both explanations (more cells and more IGF-1) play a role.
But more research is needed to really understand why taller people get cancer and whether this information could be used to prevent or even treat cancers.
I’m tall. What should I do?
If you are more LeBron James than Lionel Messi when it comes to height, what can you do?
Firstly, remember height only increases cancer risk by a very small amount.
Secondly, there are many things all of us can do to reduce our cancer risk, and those things have a much, much greater effect on cancer risk than height.
We can take a look at our lifestyle. Try to:
- eat a healthy diet
- exercise regularly
- maintain a healthy weight
- be careful in the sun
- limit alcohol consumption.
And, most importantly, don’t smoke!
If we all did these things we could vastly reduce the amount of cancer.
You can also take part in cancer screening programs that help pick up cancers of the breast, cervix and bowel early so they can be treated successfully.
Finally, take heart! Research also tells us that being taller might just reduce your chance of having a heart attack or stroke.
Susan Jordan, Associate Professor of Epidemiology, The University of Queensland and Karen Tuesley, Postdoctoral Research Fellow, School of Public Health, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Beat Food Addictions!
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When It’s More Than “Just” Cravings
This is Dr. Nicole Avena. She’s a research neuroscientist who also teaches at Mount Sinai School of Medicine, as well as at Princeton. She’s done a lot of groundbreaking research in the field of nutrition, diet, and addition, with a special focus on women’s health and sugar intake specifically.
What does she want us to know?
Firstly, that food addictions are real addictions.
We know it can sound silly, like the famous line from Mad Max:
❝Do not, my friends, become addicted to water. It will take hold of you and you will resent its absence!❞
As an aside, it is actually possible to become addicted to water; if one drinks it excessively (we are talking gallons every day) it does change the structure of the brain (no surprise; the brain is not supposed to have that much water!) causing structural damage that then results in dependency, and headaches upon withdrawal. It’s called psychogenic polydipsia:
But back onto today’s more specific topic, and by a different mechanism of addiction…
Food addictions are dopaminergic addictions (as is cocaine)
If you are addicted to a certain food (often sugar, but other refined carbs such as potato products, and also especially refined flour products, are also potential addictive substances), then when you think about the food in question, your brain lights up with more dopamine than it should, and you are strongly motivated to seek and consume the substance in question.
Remember, dopamine functions by expectation, not by result. So until your brain’s dopamine-gremlin is sated, it will keep flooding you with motivational dopamine; that’s why the first bite tastes best, then you wolf down the rest before your brain can change its mind, and afterwards you may be left thinking/feeling “was that worth it?”.
Much like with other addictions (especially alcohol), shame and regret often feature strongly afterwards, even accompanied by notions of “never again”.
But, binge-eating is as difficult to escape as binge-drinking.
You can break free, but you will probably have to take it seriously
Dr. Avena recommends treating a food addiction like any other addiction, which means:
- Know why you want to quit (make a list of the reasons, and this will help you stay on track later!)
- Make a conscious decision to genuinely quit
- Learn about the nature of the specific addiction (know thy enemy!)
- Choose a strategy (e.g. wean off vs cold turkey, and decide what replacements, if any, you will use)
- Get support (especially from those around you, and/but the support of others facing, or who have successfully faced, the same challenge is very helpful too)
- Keep track of your success (build and maintain a streak!)
- Lean into how you will better enjoy life without addiction to the substance (it never really made you happy anyway, so enjoy your newfound freedom and good health!)
Want more from Dr. Avena?
You can check out her column at Psychology Today here:
Psychology Today | Food Junkie ← it has a lot of posts about sugar addiction in particular, and gives a lot of information and practical advice
You can also read her book, which could be a great help if you are thinking of quitting a sugar addiction:
Sugarless: A 7-Step Plan to Uncover Hidden Sugars, Curb Your Cravings, and Conquer Your Addiction
Enjoy!
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How To Triple Your Breast Cancer Survival Chances
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Keeping Abreast Of Your Cancer Risk
It’s the kind of thing that most people think won’t happen to them. And hopefully, it won’t!
But…
- Anyone (who has not had a double mastectomy*, anyway) can get breast cancer.
- *and even this depends on the type of double mastectomy and other circumstances, and technically there will always be a non-zero risk, because of complicating factors.
- Breast cancer, if diagnosed early (before it spreads), has a 98% survival rate.
- That survival rate drops to 31% if diagnosed after it has spread through the body.
(The US CDC’s breast cancer “stat bite” page has more stats and interactive graphs, so click here to see those charts and get the more detailed low-down on mortality/survival rates with various different situations)
We think that the difference between 98% and 31% survival rates is more than enough reason to give ourselves a monthly self-check at the very least! You’ve probably seen how-to diagrams before, but here are instructions for your convenience:
(This graphic was created by the Jordan Breast Cancer Program—check them out, as they have lots of resources)
If you don’t have the opportunity to take matters into your own hands right now, rather than just promise yourself “I’ll do that later”, take this free 4-minute Breast Health Assessment from Aurora Healthcare. Again, we think the difference early diagnosis can make to your survival chances make these tests well worth it:
Click Here To Take The Free 4-Minute Breast Health Assessment!
Lest we forget, men can also get breast cancer (the CDC has a page for men too), especially if over 50. But how do you check for breast cancer, when you don’t have breasts in the commonly-understood sense of the word?
So take a moment to do this (yes, really actually do it!), and set a reminder in your calendar to repeat it monthly—there really is no reason not to!
Take care of yourself; you’re important.
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- Anyone (who has not had a double mastectomy*, anyway) can get breast cancer.
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A Hospital Kept a Brain-Damaged Patient on Life Support to Boost Statistics. His Sister Is Now Suing for Malpractice.
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ProPublica is a Pulitzer Prize-winning investigative newsroom. Sign up for The Big Story newsletter to receive stories like this one in your inbox.
In 2018, Darryl Young was hoping for a new lease on life when he received a heart transplant at a New Jersey hospital after years of congestive heart failure. But he suffered brain damage during the procedure and never woke up.
The following year, a ProPublica investigation revealed that Young’s case was part of a pattern of heart transplants that had gone awry at Newark Beth Israel Medical Center in 2018. The spate of bad outcomes had pushed the center’s percentage of patients still alive one year after surgery — a key benchmark — below the national average. Medical staff were under pressure to boost that metric. ProPublica published audio recordings from meetings in which staff discussed the need to keep Young alive for a year, because they feared another hit to the program’s survival rate would attract scrutiny from regulators. On the recordings, the transplant program’s director, Dr. Mark Zucker, cautioned his team against offering Young’s family the option of switching from aggressive care to comfort care, in which no lifesaving efforts would be made. He acknowledged these actions were “very unethical.”
ProPublica’s revelations horrified Young’s sister Andrea Young, who said she was never given the full picture of her brother’s condition, as did the findings of a subsequent federal regulator’s probe that determined that the hospital was putting patients in “immediate jeopardy.” Last month, she filed a medical malpractice lawsuit against the hospital and members of her brother’s medical team.
The lawsuit alleges that Newark Beth Israel staff were “negligent and deviated from accepted standards of practice,” leading to Young’s tragic medical outcome.
Defendants in the lawsuit haven’t yet filed responses to the complaint in court documents. But spokesperson Linda Kamateh said in an email that “Newark Beth Israel Medical Center is one of the top heart transplant programs in the nation and we are committed to serving our patients with the highest quality of care. As this case is in active litigation, we are unable to provide further detail.” Zucker, who is no longer on staff at Newark Beth Israel, didn’t respond to requests for comment. His attorney also didn’t respond to calls and emails requesting comment.
Zucker also didn’t respond to requests for comment from ProPublica in 2018; Newark Beth Israel at the time said in a statement, made on behalf of Zucker and other staff, that “disclosures of select portions of lengthy and highly complex medical discussions, when taken out of context, may distort the intent of conversations.”
The lawsuit alleges that Young suffered brain damage as a result of severely low blood pressure during the transplant surgery. In 2019, when the federal Centers for Medicare and Medicaid Services scrutinized the heart transplant program following ProPublica’s investigation, the regulators found that the hospital had failed to implement corrective measures even after patients suffered, leading to further harm. For example, one patient’s kidneys failed after a transplant procedure in August 2018, and medical staff made recommendations internally to increase the frequency of blood pressure measurement during the procedure, according to the lawsuit. The lawsuit alleges that the hospital didn’t implement its own recommendations and that one month later, “these failures were repeated” in Young’s surgery, leading to brain damage.
The lawsuit also alleges that Young wasn’t asked whether he had an advance directive, such as a preference for a do-not-resuscitate order, despite a hospital policy stating that patients should be asked at the time of admission. The lawsuit also noted that CMS’ investigation found that Andrea Young was not informed of her brother’s condition.
Andrea Young said she understands that mistakes can happen during medical procedures, “however, it’s their duty and their responsibility to be honest and let the family know exactly what went wrong.” Young said she had to fight to find out what was going on with her brother, at one point going to the library and trying to study medical books so she could ask the right questions. “I remember as clear as if it were yesterday, being so desperate for answers,” she said.
Andrea Young said that she was motivated to file the lawsuit because she wants accountability. “Especially with the doctors never, from the outset, being forthcoming and truthful about the circumstances of my brother’s condition, not only is that wrong and unethical, but it took a lot away from our entire family,” she said. “The most important thing to me is that those responsible be held accountable.”
ProPublica’s revelation of “a facility putting its existence over that of a patient is a scary concept,” said attorney Jonathan Lomurro, who’s representing Andrea Young in this case with co-counsel Christian LoPiano. Besides seeking damages for Darryl Young’s children, “we want to call attention to this so it doesn’t happen again,” Lomurro said.
The lawsuit further alleges that medical staff at Newark Beth Israel invaded Young’s privacy and violated the Health Insurance Portability and Accountability Act, more commonly known as HIPAA, by sharing details of his case with the media without his permission. “We want people to be whistleblowers and want information out,” but that information should be told to patients and their family members directly, Lomurro said.
The 2019 CMS investigation determined that Newark Beth Israel’s program placed patients in “immediate jeopardy,” the most serious level of violation, and required the hospital to implement corrective plans. Newark Beth Israel did not agree with all of the regulator’s findings and in a statement at the time said that the CMS team lacked the “evidence, expertise and experience” to assess and diagnose patient outcomes.
The hospital did carry out the corrective plans and continues to operate a heart transplant program today. The most recent federal data, based on procedures from January 2021 through June 2023, shows that the one year probability of survival for a patient at Newark Beth is lower than the national average. It also shows that the number of graft failures, including deaths, in that time period was higher than the expected number of deaths for the program.
Andrea Young said she’s struggled with a feeling of emptiness in the years after her brother’s surgery. They were close and called each other daily. “There’s nothing in the world that can bring my brother back, so the only solace I will have is for the ones responsible to be held accountable,” she said. Darryl Young died on Sept 12, 2022, having never woken up after the transplant surgery.
A separate medical malpractice lawsuit filed in 2020 by the wife of another Newark Beth Israel heart transplant patient who died after receiving an organ infected with a parasitic disease is ongoing. The hospital has denied the allegations in court filing. The state of New Jersey, employer of the pathologists named in the case, settled for $1.7 million this month, according to the plaintiff’s attorney Christian LoPiano. The rest of the case is ongoing.
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Spiked Acupressure Mat: Trial & Report
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Are you ready for the least comfortable bed? The reviews are in, and…
Let’s get straight to the point
“Laura Try” tries out health things and reports on her findings. And in this case…
- She noted up front that the claims for this are to improve relaxation, alleviate muscle pain, and improve sleep.
- It also is said to help with myofascial release specifically, which can improve flexibility and mobility (as well as contributing to the alleviation of muscle pain previously mentioned)
- She did not enjoy it at first! Shocking nobody, it was uncomfortable and even somewhat painful. However, after a while, it became less painful and more comfortable—except for trying standing on it, which still hurt (this writer has one too, and I often stand on it at my desk, whenever I feel my feet need a little excitement—it’s probably good for the circulation, but that is just a hypothesis)
- Soon, it became relaxing. Writer’s note: that raised hemicylindrical pillow she’s using? Try putting it under your neck instead, to stimulate the vagus nerve.
- While it is best use on bare skin, the effect can be softened by wearing a thin later of clothing between you and the mat.
- She got hers for £71 GBP (this writer got hers for a fraction of that price from Aldi—and here’s an example product on Amazon, at a more mid-range price)
For more details on all of the above and a blow-by-blow account, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Fascia: Why (And How) You Should Take Care Of Yours
Take care!
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Low-Dose Aspirin & Anemia
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We recently wrote about…
How To Survive A Heart Attack When You’re Alone
…and one of the items was “if you have aspirin readily available, then after calling an ambulance is the time to take it—but don’t exert yourself trying to find some”.
But what of aspirin as a preventative?
Many people take low-dose aspirin daily as a way to reduce the risk of atherothrombosis specifically (and thus, indirectly, they hope to reduce the risk of heart attacks).
The science of how helpful this is both clear and complicated—that is to say, the stats are not ambiguous*, but there are complicating factors of which many people are unaware.
*it will reduce the overall risk of cardiovascular events, but will not affect CVD mortality; in other words, it may improve your recovery from minor cardiac events, but is not likely to save you from major ones.
And also, it has unwanted side effects that can constitute a more relevant threat for many people. We’ll share more on that at the end of today’s article, but first…
A newly identified threat from daily aspirin use
A large (n=313,508) study of older adults (median age 73) were sorted into those who used low-dose aspirin as a preventative, and those who did not.
The primary outcome was incidence of anemia sufficient to require treatment, and the secondary outcome was major bleeding. And, at least 1 in 5 of those who experienced anemia also experienced bleeding.
The bleeding issue was not “newly identified” and will not surprise many people; after all, the very reason that aspirin is taken as a CVD preventative is for its anti-clotting property of allowing blood to flow more freely.
The anemia, however, has been getting increasing scientific scrutiny lately, after long going unnoticed in the wild. Given that anemia also gives the symptom “dizziness”, this is also a significant threat for increasing the incidence of falls in the older population, too, which can of course lead to serious complications and ultimately death.
Here’s the paper itself:
Want to know more?
As promised, here’s what we wrote previously about some of aspirin’s other risks:
Aspirin, CVD Risk, & Potential Counter-Risks
Take care!
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From eye exams to blood tests and surgery: how doctors use light to diagnose disease
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This is the next article in our ‘Light and health’ series, where we look at how light affects our physical and mental health in sometimes surprising ways. Read other articles in the series.
You’re not feeling well. You’ve had a pounding headache all week, dizzy spells and have vomited up your past few meals.
You visit your GP to get some answers and sit while they shine a light in your eyes, order a blood test and request some medical imaging.
Everything your GP just did relies on light. These are just some of the optical technologies that have had an enormous impact in how we diagnose disease.
1. On-the-spot tests
Point-of-care diagnostics allow doctors to test patients on the spot and get answers in minutes, rather than sending samples to a lab for analysis.
The “flashlight” your GP uses to view the inside of your eye (known as an ophthalmoscope) is a great example. This allows doctors to detect abnormal blood flow in the eye, deformations of the cornea (the outermost clear layer of the eye), or swollen optical discs (a round section at the back of the eye where the nerve link to the brain begins). Swollen discs are a sign of elevated pressure inside your head (or in the worst case, a brain tumour) that could be causing your headaches.
The invention of lasers and LEDs has enabled many other miniaturised technologies to be provided at the bedside or clinic rather than in the lab.
Pulse oximetry is a famous example, where a clip attached to your finger reports how well your blood is oxygenated. It does this by measuring the different responses of oxygenated and de-oxygenated blood to different colours of light.
Pulse oximetry is used at hospitals (and sometimes at home) to monitor your respiratory and heart health. In hospitals, it is also a valuable tool for detecting heart defects in babies.
2. Looking at molecules
Now, back to that blood test. Analysing a small amount of your blood can diagnose many different diseases.
A machine called an automated “full blood count analyser” tests for general markers of your health. This machine directs focused beams of light through blood samples held in small glass tubes. It counts the number of blood cells, determines their specific type, and reports the level of haemoglobin (the protein in red blood cells that distributes oxygen around your body). In minutes, this machine can provide a snapshot of your overall health.
For more specific disease markers, blood serum is separated from the heavier cells by spinning in a rotating instrument called a centrifuge. The serum is then exposed to special chemical stains and enzyme assays that change colour depending on whether specific molecules, which may be the sign of a disease, are present.
These colour changes can’t be detected with the naked eye. However, a light beam from an instrument called a spectrometer can detect tiny amounts of these substances in the blood and determine if the biomarkers for diseases are present, and at what levels.
3. Medical imaging
Let’s re-visit those medical images your GP ordered. The development of fibre-optic technology, made famous for transforming high-speed digital communications (such as the NBN), allows light to get inside the body. The result? High-resolution optical imaging.
A common example is an endoscope, where fibres with a tiny camera on the end are inserted into the body’s natural openings (such as your mouth or anus) to examine your gut or respiratory tracts.
Surgeons can insert the same technology through tiny cuts to view the inside of the body on a video screen during laparoscopic surgery (also known as keyhole surgery) to diagnose and treat disease.
How about the future?
Progress in nanotechnology and a better understanding of the interactions of light with our tissues are leading to new light-based tools to help diagnose disease. These include:
- nanomaterials (materials on an extremely small scale, many thousands of times smaller than the width of a human hair). These are being used in next-generation sensors and new diagnostic tests
- wearable optical biosensors the size of your fingernail can be included in devices such as watches, contact lenses or finger wraps. These devices allow non-invasive measurements of sweat, tears and saliva, in real time
- AI tools to analyse how blood serum scatters infrared light. This has allowed researchers to build a comprehensive database of scatter patterns to detect any cancer
- a type of non-invasive imaging called optical coherence tomography for more detailed imaging of the eye, heart and skin
- fibre optic technology to deliver a tiny microscope into the body on the tip of a needle.
So the next time you’re at the GP and they perform (or order) some tests, chances are that at least one of those tests depend on light to help diagnose disease.
Matthew Griffith, Associate Professor and ARC Future Fellow and Director, UniSA Microscopy and Microanalysis Facilities, University of South Australia
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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