Walking… Better.
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Walking… Better.
We recently reviewed “52 Ways To Walk” by Annabel Streets. You asked us to share some more of our learnings from that book, and… Obviously we can’t do all 52, nor go into such detail, but here are three top tips inspired by that book…
Walk in the cold!
While cold weather is often seen as a reason to not walk, in fact, it has numerous health benefits, the most exciting of which might be:
Walking in the cold causes us to convert white and yellow fat into the healthier brown fat. If you didn’t know about this, neither did scientists until about 15 years ago.
In fact, scientists didn’t even know that adult humans could even have brown adipose tissue! It was really quite groundbreaking.
In case you missed it: The Changed Metabolic World with Human Brown Adipose Tissue: Therapeutic Visions
Work while you walk!
Obviously this is only appropriate for some kinds of work… but if in your life you have any kind of work that is chiefly thinking, a bunch of it can be done while walking.
Open your phone’s note-taking app, lock the screen and pocket your phone, and think on some problem that you need to solve. Whenever you have an “aha” moment, take out your phone and make a quick note on the go.
For that matter, if you have the money and space (or are fortunate to have an employer disposed towards facilitating such), you could even set up a treadmill desk… At worst, it wouldn’t harm your work (and it’ll be a LOT better than sitting for so long).
Walk within an hour of waking!
No, this doesn’t mean that if you don’t get out of the house within 60 minutes you say “Oh no, missed the window, guess it’s a day in today”
But it does mean: in the evening, make preparations to head out first thing in the morning. Set out your clothes and appropriate footwear, find your flask to fill with the beverage of your choice in the morning and set that with them.
Then, when morning arrives… do your morning necessaries (e.g. some manner of morning ablutions and perhaps a light breakfast), make that drink for your flask, and hit the road.
Why? We’ll tell you a secret:
You ever wondered why some people seem to be more able to keep a daylight-regulated circadian rhythm than others? It’s not just about smartphones and coffees…
This study found that getting sunlight (not electric light, not artificial sunlight, but actual sunlight, from the sun, even if filtered through partial cloud) between 08:30—09:00 resulted in higher levels of a protein called PER2. PER2 is critical for setting circadian rhythms, improving metabolism, and fortifying blood vessels.
Besides, on a more simplistic level, it’s also a wonderful and energizing start to a healthy and productive day!
Read: Beneficial effects of daytime light exposure on daily rhythms, metabolic state and affect
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What I Wish People Knew About Dementia – by Dr. Wendy Mitchell
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We hear a lot from doctors who work with dementia patients; sometimes we hear from carers too. In this case, the author spent 20 years working for the NHS, before being diagnosed with young-onset dementia, at the age of 58. Like many health industry workers who got a life-changing diagnosis, she quickly found it wasn’t fun being on the other side of things, and vowed to spend her time researching, and raising awareness about, dementia.
Many people assume that once a person has dementia, they’re basically “gone before they’re gone”, which can rapidly become a self-fulfilling prophecy as that person finds themself isolated and—though this word isn’t usually used—objectified. Talked over, viewed (and treated) more as a problem than a person. Cared for hopefully, but again, often more as a patient than a person. If doctors struggle to find the time for the human side of things with most patients most of the time, this is only accentuated when someone needs more time and patience than average.
Instead, Dr. Mitchell—an honorary doctorate, by the way, awarded for her research—writes about what it’s actually like to be a human with dementia. Everything from her senses, how she eats, the experience of eating in care homes, the process of boiling an egg… To relationships, how care changes them, to the challenges of living alone. And communication, confusion, criticism, the language used by professionals, or how things are misrepresented in popular media. She also talks about the shifting sense of self, and brings it all together with gritty optimism.
The style is deeply personal, yet lucid and clear. While dementia is most strongly associated with memory loss and communication problems, this hasn’t affected her ability to write well (7 years into her diagnosis, in case you were wondering).
Bottom line: if you’d like to read a first-person view of dementia, then this is an excellent opportunity to understand it from the view of, as the subtitle goes, someone who knows.
Click here to check out What I Wish People Knew About Dementia, and then know those things!
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Debunking the vitamin D fad
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Throughout the pandemic, many unproven miracle COVID-19 “cures” emerged, and vitamin D claims have been one of the most persistent. This is not new for the vitamin. It’s been touted in recent decades as a way to “boost” the immune system, improve overall health, prevent a host of diseases, and allegedly even substitute for vaccines.
But as with many internet-popular health “remedies,” the reality is far less flashy and far more nuanced.
What is vitamin D, and why is it important?
Vitamin D is a nutrient that helps the body absorb calcium, which is essential for bone health. In the sunlight, your skin naturally produces vitamin D that is then stored in fat cells until it is used.
The skin pigment melanin absorbs the UV rays necessary for vitamin D production, meaning that more highly pigmented or darker skin produces less vitamin D than lighter skin with the same amount of sun exposure. Thus, people with darker skin are at higher risk of vitamin D deficiency.
Most of our vitamin D comes from the sun. An additional 10 percent to 20 percent of our vitamin D comes from foods like fatty fish (such as salmon), eggs, and mushrooms. Vitamin D supplements are another source of the nutrient for people who are unable to get enough from sun exposure and diet.
Vitamin D deficiency is real, but there’s no epidemic
Some people who promote vitamin D supplements claim that vitamin D deficiency is an epidemic causing widespread health issues. There is little evidence to support this claim. A 2022 analysis of 2001-2018 data found that 2.6 percent of people in the U.S. had severe vitamin D deficiency.
Severe vitamin D deficiency can cause serious health issues, such as muscle weakness, bone loss in adults, and rickets (weak bones) in children. Some people are at higher risk for the deficiency, including individuals with certain disorders that prevent the body from absorbing or processing vitamin D or those with a family history of vitamin D deficiency.
Black Americans have the highest rates of severe vitamin D deficiency at nearly 12 percent. Severe vitamin D deficiency is also slightly higher in the U.S. during the winter when people get less sun exposure. Rates of moderate vitamin D deficiency are higher at 22 percent overall and are highest among Black Americans (49 percent) and Mexican Americans (35 percent).
Although severe vitamin D deficiency exists in the U.S., it is far from common. Most tellingly, conditions that are directly linked to vitamin D deficiency are not widespread. There is no epidemic of rickets, for example, or bone loss in adults.
There’s little evidence that vitamin D supplements improve overall health
Vitamin D supplements have clear, proven positive effects for people with vitamin D deficiency. Other health benefits of vitamin D supplements are less certain.
There is some evidence that the supplement may reduce the risk of fracture in adults with osteoporosis, a condition that causes weak, fragile bones. However, the benefit appears to be limited to people who have low vitamin D levels. In adults with normal vitamin D levels, supplements have no effect on fracture risk.
The largest randomized controlled trial of vitamin D, called VITAL, investigated the effects of vitamin D supplementation in people without an existing deficiency. The study found that vitamin D supplements had no effects on the risk of cancer, diabetes, or cardiovascular disease, including heart attack and stroke. The study concluded that more research is necessary to determine who may benefit from vitamin D supplements.
Independent analyses found that vitamin D supplementation may be associated with a long-term decrease in cancer mortality, but results are mixed and also require more investigation.
A 2021 analysis of past vitamin D trials found no overall health benefits from vitamin D supplements in people with normal vitamin D levels. Most large-scale studies have found no link between vitamin D supplements and lower all-cause mortality (deaths from any cause), except in older adults and those with vitamin D deficiency.
Vitamin D provides modest protection against respiratory infections
Vitamin D is important for immune function, but this is often misconstrued as vitamin D “boosting” the immune system.
Some people falsely believe that taking vitamin D supplements will keep them healthy and prevent infections like the flu or COVID-19. In reality, clinical trials and large-scale studies of vitamin D have found only minimal protective effects against respiratory infections.
A 2021 analysis of 46 trials found that 61.3 percent of participants who took daily vitamin D supplements got respiratory infections during the study periods—compared to 62.3 percent of people who did not take the supplements. A 2024 meta-analysis of 43 trials found no overall protective effect against respiratory infections, but it detected a slight decrease in risk among people who took specific doses daily.
In young children, there is some evidence that vitamin D supplementation may reduce the length of respiratory infections. However, it does not affect the number or severity of infections that children have.
Despite claims that taking vitamin D can protect against COVID-19, two clinical trials found that taking daily vitamin D supplements did not reduce the risk or severity of COVID-19 infections, even at high doses.
Context is key when considering vitamin D’s benefits
None of these studies contradict the well-established evidence that people with vitamin D deficiency benefit from vitamin D supplements. But it’s important to remember that many of the most popular health claims about vitamin D’s benefits are based on research in people with vitamin D deficiency.
Research in vitamin D-deficient populations is important, but it tells us little about how vitamin D will affect people with normal or close to normal vitamin D levels. A closer look at vitamin D research in people without low levels reveals little evidence to support the idea that the general population benefits from taking vitamin D supplements.
For more information, or to learn about your vitamin D levels, talk to your health care provider.
This article first appeared on Public Good News and is republished here under a Creative Commons license.
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How to Find Happiness In Yourself – by Michelle Mann
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A lot of books about happiness tell you what to pursue, generally. What things to focus on, and that’s good, but incomplete. This book does cover those things too (complete with academic sources to back up what really works), but also goes further:
Michelle Mann gives 25 key habits that will cumulatively build happiness, which is what it’s really about. After all:
- If you watch your favourite movie, you’ll be happy for 90 minutes (or 9 hours if it’s The Lord of the Rings).
- If you build daily habits that add happiness to you, your surroundings, and those around you, you’ll be happy for life.
They do also cover happiness while going through difficult times, such as divorce, job loss, illness, or bereavement.
Sometimes, knowing what we “should” do in theory is the easy part. Where Mann excels here is in providing explanations of each habit. This means that rather than it being some platitude, the principles underlying it are truly understood… and thus motivate us to actually apply the advice and build the habits into our life.
While the explanations are therefore the greatest value of the book, we do recommend copying out the 25 habits (which are effectively subchapter headings) and putting them somewhere to read often.
Bottom line: we recommend getting yourself (and/or your loved ones!) a copy of this book. You (and/or they) will be happy you did!
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Eat It! – by Jordan Syatt and Michael Vacanti
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One of the biggest challenges we often face when undertaking diet and exercise regimes, is the “regime” part. Day one is inspiring, day two is exciting… Day seventeen when one has a headache and some kitchen appliance just broke and one’s preferred exercise gear is in the wash… Not so much.
Authors Jordan Syatt and Michael Vacanti, therefore, have taken it upon themselves to bring sustainability to us.
Their main premise is simplicity, but simplicity that works. For example:
- Having a daily calorie limit, but being ok with guesstimating
- Weighing regularly, but not worrying about fluctuations (just trends!)
- Eating what you like, but prioritizing some foods over others
- Focusing on resistance training, but accessible exercises that work the whole body, instead of “and then 3 sets of 12 reps of these in 6-4-2 progression to exhaustion of the anterior sternocleidomastoid muscle”
The writing style is simple and clear too, without skimping on the science where science helps explain why something works a certain way.
Bottom line: this one’s for anyone who would like a strong healthy body, without doing the equivalent of a degree in anatomy and physiology along the way.
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The Princess of Wales wants to stay cancer-free. What does this mean?
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Catherine, Princess of Wales, has announced she has now completed a course of preventive chemotherapy.
The news comes nine months after the princess first revealed she was being treated for an unspecified form of cancer.
In the new video message released by Kensington Palace, Princess Catherine says she’s focused on doing what she can to stay “cancer-free”. She acknowledges her cancer journey is not over and the “path to recovery and healing is long”.
While we don’t know the details of the princess’s cancer or treatment, it raises some questions about how we declare someone fully clear of the disease. So what does being – and staying – “cancer-free” mean?
What’s the difference between being cancer-free and in remission?
Medically, “cancer-free” means two things. First, it means no cancer cells are able to be detected in a patient’s body using the available testing methods. Second, there is no cancer left in the patient.
These might sound basically the same. But this second aspect of “cancer-free” can be complicated, as it’s essentially impossible to be sure no cancer cells have survived a treatment.
It only takes a few surviving cells for the cancer to grow back. But these cells may not be detectable via testing, and can lie dormant for some time. The possibility of some cells still surviving means it is more accurate to say a patient is “in remission”, rather than “cancer-free”.
Remission means there is no detectable cancer left. Once a patient has been in remission for a certain period of time, they are often considered to be fully “cancer-free”.
Princess Catherine was not necessarily speaking in the strict medical sense. Nonetheless, she is clearly signalling a promising step in her recovery.
What happens during remission?
During remission, patients will usually undergo surveillance testing to make sure their cancer hasn’t returned. Detection tests can vary greatly depending on both the patient and their cancer type.
Many tests involve simply looking at different organs to see if there are cancer cells present, but at varying levels of complexity.
Some cancers can be detected with the naked eye, such as skin cancers. In other cases, technology is needed: colonoscopies for colorectal cancers, X-ray mammograms for breast cancers, or CT scans for lung cancers. There are also molecular tests, which test for the presence of cancer cells using protein or DNA from blood or tissue samples.
For most patients, testing will continue for years at regular intervals. Surveillance testing ensures any returning cancer is caught early, giving patients the best chance of successful treatment.
Remaining in remission for five years can be a huge milestone in a patient’s cancer journey. For most types of cancer, the chances of cancer returning drop significantly after five years of remission. After this point, surveillance testing may be performed less frequently, as the patients might be deemed to be at a lower risk of their cancer returning.
Measuring survival rates
Because it is very difficult to tell when a cancer is “cured”, clinicians may instead refer to a “five-year survival rate”. This measures how likely a cancer patient is to be alive five years after their diagnosis.
For example, data shows the five-year survival rate for bowel cancer among Australian women (of all ages) is around 70%. That means if you had 100 patients with bowel cancer, after five years you would expect 70 to still be alive and 30 to have succumbed to the disease.
These statistics can’t tell us much about individual cases. But comparing five-year survival rates between large groups of patients after different cancer treatments can help clinicians make the often complex decisions about how best to treat their patients.
The likelihood of cancer coming back, or recurring, is influenced by many factors which can vary over time. For instance, approximately 30% of people with lung cancer develop a recurrent disease, even after treatment. On the other hand, breast cancer recurrence within two years of the initial diagnosis is approximately 15%. Within five years it drops to 10%. After ten, it falls below 2%.
These are generalisations though – recurrence rates can vary greatly depending on things such as what kind of cancer the patient has, how advanced it is, and whether it has spread.
Staying cancer-free
Princess Catherine says her focus now is to “stay cancer-free”. What might this involve?
How a cancer develops and whether it recurs can be influenced by things we can’t control, such as age, ethnicity, gender, genetics and hormones.
However, there are sometimes environmental factors we can control. That includes things like exposure to UV radiation from the sun, or inhaling carcinogens like tobacco.
Lifestyle factors also play a role. Poor diet and nutrition, a lack of exercise and excessive alcohol consumption can all contribute to cancer development.
Research estimates more than half of all cancers could potentially be prevented through regular screening and maintaining a healthy lifestyle (not to mention preventing other chronic conditions such as heart disease and diabetes).
Recommendations to reduce cancer risk are the same for everyone, not just those who’ve had treatment like Princess Catherine. They include not smoking, eating a nutritious and balanced diet, exercising regularly, cutting down on alcohol and staying sun smart.
Amali Cooray, PhD Candidate in Genetic Engineering and Cancer, WEHI (Walter and Eliza Hall Institute of Medical Research) ; John (Eddie) La Marca, Senior Research Officer, Blood Cells and Blood Cancer, WEHI (Walter and Eliza Hall Institute of Medical Research) , and Sarah Diepstraten, Senior Research Officer, Blood Cells and Blood Cancer Division, WEHI (Walter and Eliza Hall Institute of Medical Research)
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Needle Pain Is a Big Problem for Kids. One California Doctor Has a Plan.
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Almost all new parents go through it: the distress of hearing their child scream at the doctor’s office. They endure the emotional torture of having to hold their child down as the clinician sticks them with one vaccine after another.
“The first shots he got, I probably cried more than he did,” said Remy Anthes, who was pushing her 6-month-old son, Dorian, back and forth in his stroller in Oakland, California.
“The look in her eyes, it’s hard to take,” said Jill Lovitt, recalling how her infant daughter Jenna reacted to some recent vaccines. “Like, ‘What are you letting them do to me? Why?’”
Some children remember the needle pain and quickly start to internalize the fear. That’s the fear Julia Cramer witnessed when her 3-year-old daughter, Maya, had to get blood drawn for an allergy test at age 2.
“After that, she had a fear of blue gloves,” Cramer said. “I went to the grocery store and she saw someone wearing blue gloves, stocking the vegetables, and she started freaking out and crying.”
Pain management research suggests that needle pokes may be children’s biggest source of pain in the health care system. The problem isn’t confined to childhood vaccinations either. Studies looking at sources of pediatric pain have included children who are being treated for serious illness, have undergone heart surgeries or bone marrow transplants, or have landed in the emergency room.
“This is so bad that many children and many parents decide not to continue the treatment,” said Stefan Friedrichsdorf, a specialist at the University of California-San Francisco’s Stad Center for Pediatric Pain, speaking at the End Well conference in Los Angeles in November.
The distress of needle pain can follow children as they grow and interfere with important preventive care. It is estimated that a quarter of all adults have a fear of needles that began in childhood. Sixteen percent of adults refuse flu vaccinations because of a fear of needles.
Friedrichsdorf said it doesn’t have to be this bad. “This is not rocket science,” he said.
He outlined simple steps that clinicians and parents can follow:
- Apply an over-the-counter lidocaine, which is a numbing cream, 30 minutes before a shot.
- Breastfeed babies, or give them a pacifier dipped in sugar water, to comfort them while they’re getting a shot.
- Use distractions like teddy bears, pinwheels, or bubbles to divert attention away from the needle.
- Don’t pin kids down on an exam table. Parents should hold children in their laps instead.
At Children’s Minnesota, Friedrichsdorf practiced the “Children’s Comfort Promise.” Now he and other health care providers are rolling out these new protocols for children at UCSF Benioff Children’s Hospitals in San Francisco and Oakland. He’s calling it the “Ouchless Jab Challenge.”
If a child at UCSF needs to get poked for a blood draw, a vaccine, or an IV treatment, Friedrichsdorf promises, the clinicians will do everything possible to follow these pain management steps.
“Every child, every time,” he said.
It seems unlikely that the ouchless effort will make a dent in vaccine hesitancy and refusal driven by the anti-vaccine movement, since the beliefs that drive it are often rooted in conspiracies and deeply held. But that isn’t necessarily Friedrichsdorf’s goal. He hopes that making routine health care less painful can help sway parents who may be hesitant to get their children vaccinated because of how hard it is to see them in pain. In turn, children who grow into adults without a fear of needles might be more likely to get preventive care, including their yearly flu shot.
In general, the onus will likely be on parents to take a leading role in demanding these measures at medical centers, Friedrichsdorf said, because the tolerance and acceptance of children’s pain is so entrenched among clinicians.
Diane Meier, a palliative care specialist at Mount Sinai, agrees. She said this tolerance is a major problem, stemming from how doctors are usually trained.
“We are taught to see pain as an unfortunate, but inevitable side effect of good treatment,” Meier said. “We learn to repress that feeling of distress at the pain we are causing because otherwise we can’t do our jobs.”
During her medical training, Meier had to hold children down for procedures, which she described as torture for them and for her. It drove her out of pediatrics. She went into geriatrics instead and later helped lead the modern movement to promote palliative care in medicine, which became an accredited specialty in the United States only in 2006.
Meier said she thinks the campaign to reduce needle pain and anxiety should be applied to everyone, not just to children.
“People with dementia have no idea why human beings are approaching them to stick needles in them,” she said. And the experience can be painful and distressing.
Friedrichsdorf’s techniques would likely work with dementia patients, too, she said. Numbing cream, distraction, something sweet in the mouth, and perhaps music from the patient’s youth that they remember and can sing along to.
“It’s worthy of study and it’s worthy of serious attention,” Meier said.
This article is from a partnership that includes KQED, NPR, and KFF Health News.
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.
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