How Aging Changes At 44 And Again At 60 (And What To Do About It)
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As it turns out, aging is not linear. Or rather: chronological aging may be, but biological aging isn’t, and there are parts of our life where it kicks into a different gear. This study looked at 108 people (65 of whom women) between the ages of 25 and 75, as part of a longitudinal cohort study, tracked for around 2–8 years (imprecise as not all follow-up durations were the same). They took frequent blood and urine samples, and tested them for thousands of different molecules and analyzing changes in gene expression, proteomic, blood biomarkers, and more. All things that are indicators of various kinds of health/disease, and which might seem more simple but it isn’t: aging.
Here’s what they found:
Landmark waypoints
At 44, significant changes occur in the metabolism, including notably the metabolism of carbs, caffeine, and alcohol. A large portion of this may be hormone related, as that’s a time of change not just for those undergoing the menopause, but also the andropause (not entirely analogous to the menopause, but it does usually entail a significant reduction in sex hormone production; in this case, testosterone).
However, the study authors also hypothesize that lifestyle factors may be relevant, as one’s 40s are often a stressful time, and an increase in alcohol consumption often occurs around the same time as one’s ability to metabolize it drops, resulting in further dysfunctional alcohol metabolism.
At 60, carb metabolism slows again, with big changes in glucose metabolism specifically, as well as an increased risk of cardiovascular disease, and a decline in kidney function. In case that wasn’t enough: also an increase free radical pathology, meaning a greatly increased risk of cancer. Immune function drops too.
What to do about this: the recommendation is of course to be proactive, and look after various aspects of your health before it becomes readily apparent that you need to. For example, good advice for anyone approaching 44 might be to quit alcohol, go easy on caffeine, and eat a diet that is conducive to good glucose metabolism. Similarly, good advice for anyone approaching 60 might be to do the same, and also pay close attention to keeping your kidneys healthy. Getting regular tests done is also key, including optional extras that your doctor might not suggest but you should ask for, such as blood urea nitrogen levels (biomarkers of kidney function). The more we look after each part of our body, the more they can look after us in turn, and the fewer/smaller problems we’ll have down the line.
If you, dear reader, are approaching the age 44 or 60… Be neither despondent nor complacent. We must avoid falling into the dual traps of “Well, that’s it, bad health is around the corner, nothing I can do about it; that’s nature”, vs “I’ll be fine, statistics are for other people, and don’t apply to me”.
Those are averages, and we do not have to be average. Every population has statistical outliers. But it would be hubris to think none of this will apply to us and we can just carry on regardless. So, for those of us who are approaching one of those two ages… It’s time to saddle up, knuckle down, and do our best!
For more on all of this, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Also, if you’d like to read the actual paper by Dr. Xiaotao Shen et al., here it is:
Nonlinear dynamics of multi-omics profiles during human aging ← honestly, it’s a lot clearer and more informative than the video, and also obviously discusses things in a lot more detail than we have room to here
Take care!
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Holding Back The Clock on Aging
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Holding Back The Clock on Aging
This is Dr. Eric Verdin, President and CEO of the Buck Institute of Research on Aging. He’s also held faculty positions at the University of Brussels, the NIH, and the Picower Institute for Medical Research. Dr. Verdin is also a professor of medicine at University of California, San Francisco.
Dr. Verdin’s laboratory focuses on the role of epigenetic regulators (especially the behaviors of certain enzymes) in the aging process. He studies how metabolism, diet, and chemical factors regulate the aging process and its associated diseases, including Alzheimer’s.
He has published more than 210 scientific papers and holds more than 15 patents. He is a highly cited scientist and has been recognized for his research with a Glenn Award for Research in Biological Mechanisms of Aging.
And that’s just what we could fit here! Basically, he knows his stuff.
What we can do
Dr. Verdin’s position is bold, but rooted in evidence:
❝Lifestyle is responsible for about 93% of our longevity—only about 7% is genetics. Based on the data, if implementing health lifestyle choices, most people could live to 95 in good health. So there’s 15 to 17 extra years of healthy life that is up for grabs❞
~ Dr. Eric Verdin
See for example:
- From discoveries in aging research to therapeutics for healthy aging
- Optimism, lifestyle, and longevity in a racially diverse cohort of women
- Well-being, food habits, and lifestyle for longevity—evidence from supercentenarians
How we can do it
Well, we all know “the big five”:
- Good diet (Mediterranean Diet as usual is recommended)
- Good exercise (more on this in a moment)
- Good sleep (more on this in a moment)
- Avoid alcohol (not controversial)
- Don’t smoke (need we say more)
When it comes to exercise, generally recognized as good is at least 150 minutes per week of moderate intensity exercise (for example, a brisk walk, or doing the gardening), and at least three small sessions a week of high intensity exercise, unless contraindicated by some medical condition.
As for Dr. Verdin’s take on this…
What Dr. Verdin recommends is:
- make it personalized
- make it pre-emptive
- make it better
The perfect exercise plan is only perfect if you actually do it. And if you actually can do it, for that matter.
Prevention is so much better (and easier) than cure for a whole array of maladies. So while there may be merit in thinking “what needs fixing”, Dr. Verdin encourages us to take extra care to not neglect factors of our health that seem “good enough”. Because, give them time and neglect, and they won’t be!
Wherever we’re at in life and health, there’s always at least some little way we could make it a bit better. Dr. Verdin advises us to seek out those little improvements, even if it’s just a nudge better here, a nudge better there, all those nudges add up!
About sleep…
It’s perhaps the easiest one to neglect (writer’s note: as a writer, I certainly feel that way!), but his biggest take-away tip for this is:
Worry less about what time you set an alarm for in the morning. Instead, set an alarm for the evening—to remind you when to go to bed.
Want to hear directly from the man himself?
Here he is speaking on progress we can expect for the next decade in the field of aging research, as part of the 100 Minutes of Longevity session at The Longevity Forum, a few months ago:
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The “Five Tibetan Rites” & Why To Do Them!
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Spinning Around
In Tuesday’s newsletter, we asked you for your opinion of the “Five Tibetan Rites”, and got the above-depicted, below-described, set of responses:
- About 41% said “I have never heard of these before”
- About 27% said “they restore youth by adjusting internal vortexes”
- About 22% said “they are basically yoga, by a different name”
- About 11% said “they are a pseudoscience popular in the US”
So what does the science say?
The Five Tibetan Rites are five Tibetan rites: True or False?
False, though this is more question of social science than of health science, so we’ll not count it against them for having a misleading name.
The first known mentioning of the “Five Tibetan Rites” is by an American named Peter Kelder, who in 1939 published, through a small LA occult-specialized publishing house, a booklet called “The Eye of Revelation”. This work was then varyingly republished, repackaged, and occasionally expanded upon by Kelder or other American authors, including Chris Kilham’s popular 1994 book “The Five Tibetans”.
The “Five Tibetan Rites” are unknown as such in Tibet, except for what awareness of them has been raised by people asking about them in the context of the American phenomenon.
Here’s a good history book, for those interested:
The author didn’t originally set out to “debunk” anything, and is himself a keen spiritualist (and practitioner of the five rites), but he was curious about the origins of the rites, and ultimately found them—as a collection of five rites, and the other assorted advices given by Kelder—to be an American synthesis in the whole, each part inspired by various different physical practices (some of them hatha yoga, some from the then-popular German gymnastics movement, some purely American spiritualism, all available in books that were popular in California in the early 1900s).
You may be wondering: why didn’t Kelder just say that, then, instead of telling stories of an ancient Tibetan tradition that empirically does not exist? The answer to this lies again in social science not health science, but it’s been argued that it’s common for Westerners to “pick ‘n’ mix” ideas from the East, champion them as inscrutably mystical, and (since they are inscrutable) then simply decide how to interpret and represent them. Here’s an excellent book on this, if you’re interested:
(in Kelder’s case, this meant that “there’s a Tibetan tradition, trust me” was thus more marketable in the West than “I read these books in LA”)
They are at least five rites: True or False?
True! If we use the broad definition of “rite” as “something done repeatedly in a solemn fashion”. And there are indeed five of them:
- Spinning around (good for balance)
- Leg raises (this one’s from German gymnastics)
- Kneeling back bend (various possible sources)
- Tabletop (hatha yoga, amongst others)
- Pendulum (hatha yoga, amongst others) ← you may recognize this one from the Sun Salutation
You can see them demonstrated here:
Click Here If The Embedded Video Doesn’t Load Automatically
Kelder also advocated for what was basically the Hay Diet (named not for the substance but for William Hay; it involved separating foods into acid and alkali, not necessarily according to the actual pH of the foods, and combining only “acid” foods or only “alkali” foods at a time), which was popular at the time, but has since been rejected as without scientific merit. Kelder referred to this as “the sixth rite”.
The Five Rites restore youth by adjusting internal vortexes: True or False?
False, in any scientific sense of that statement. Scientifically speaking, the body does not have vortexes to adjust, therefore that is not the mechanism of action.
Spiritually speaking, who knows? Not us, a humble health science publication.
The Five Rites are a pseudoscience popular in the US: True or False?
True, if 27% of those who responded of our mostly North American readership can be considered as representative of what is popular.
However…
“Pseudoscience” gets thrown around a lot as a bad word; it’s often used as a criticism, but it doesn’t have to be. Consider:
A small child who hears about “eating the rainbow” and mistakenly understands that we are all fuelled by internal rainbows that need powering-up by eating fruits and vegetables of different colors, and then does so…
…does not hold a remotely scientific view of how things are happening, but is nevertheless doing the correct thing as recommended by our best current science.
It’s thus a little similar with the five rites. Because…
The Five Rites are at least good for our health: True or False?
True! They are great for the health.
The first one (spinning around) is good for balance. Science would recommend doing it both ways rather than just one way, but one is not bad. It trains balance, trains our stabilizing muscles, and confuses our heart a bit (in a good way).
See also: Fall Special (How To Not Fall, And Not Get Injured If You Do)
The second one (leg raises) is excellent for core strength, which in turn helps keep our organs where they are supposed to be (this is a bigger health issue than most people realise, because “out of sight, out of mind”), which is beneficial for many aspects of our health!
See also: Visceral Belly Fat & How To Lose It ← visceral fat is the fat that surrounds your internal organs; too much there becomes a problem!
The third, fourth, and fifth ones stretch our spine (healthily), strengthen our back, and in the cases of the fourth and fifth ones, are good full-body exercises for building strength, and maintaining muscle mass and mobility.
See also: Building & Maintaining Mobility
So in short…
If you’ve been enjoying the Five Rites, by all means keep on doing them; they might not be Tibetan (or an ancient practice, as presented), and any mystical aspect is beyond the scope of our health science publication, but they are great for the health in science-based ways!
Take care!
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Cure – by Dr. Jo Marchant
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The subtitle here, “a journey into the science of mind over body”, prompts an immediate question: is this book actually about science?
And yes, yes it is. It’s not about “positive energy” or “tapping into your divine essence” or anysuch. It’s about science, and scientific studies.
The author’s PhD is in genetics and medical microbiology, not metaphysics or something.
For those of us who read a lot of clinical studies about a lot of things (hi, regular researcher/writer here), we’re very used to placebo being used as a control in medical science.
“This drug performed no better than placebo” is generally considered a disappointing statement… But what if the placebo was already having a profound effect? Shouldn’t that be worthy of note too?
Dr. Marchant looks at more than just drugs, though, and also looks into the science (complete with EEGs and such) of hypnosis and virtual reality.
The writing style here is very accessible without skimping on science. This is to be expected; Dr. Marchant also has an MSc in science communication, and spent a time as senior editor of New Scientist magazine.
This isn’t a how-to book, but there are some practical takeaways too, specific things we can do to augment (or avoid sabotaging) any medications we take, for example.
Bottom line: placebo effect (and its evil twin, the nocebo effect) has a profound impact on all of us whether we want it or not, so we might as well learn about how it works and how to leverage it. This book gives a very good, hard science grounding.
Click here to check out “Cure” and get the most out of whatever you take (or do) for your health!
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Hair-Loss Remedies, By Science
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10almonds Gets Hairy
Hair loss is a thing that at some point affects most men and a large minority of women. It can be a source of considerable dysphoria for both, as it’s often seen as a loss of virility/femininity respectively, and is societally stigmatized in various ways.
Today we’re going to focus on the most common kind: androgenic alopecia, which is called “male pattern baldness” in men and “female pattern baldness” in women, despite being the same thing.
We won’t spend a lot of time on the science of why this happens (we’re going to focus on the remedies instead), but suffice it to say that genes and hormones both play a role, with dihydrogen testosterone (DHT) being the primary villain in this case.
We’ve talked before about the science of 5α-reductase inhibitors to block the conversion of regular testosterone* to DHT, its more potent form:
One Man’s Saw Palmetto Is Another Woman’s Serenoa Repens…
*We all make this to a greater or lesser degree, unless we have had our ovaries/testes removed.
Finasteride
Finasteride is a 5α-reductase inhibitor that performs similarly to saw palmetto, but comes in tiny pills instead of needing to take a much higher dose of supplement (5mg of finasteride is comparable in efficacy to a little over 300mg of saw palmetto).
Does it work? Yes!
Any drawbacks? A few:
- It’ll take 3–6 months to start seeing effects. This is because of the hormonal life-cycle of human hairs.
- Common side-effects include ED.
- It is popularly labelled/prescribed as “only for men”
On that latter point: the warnings about this are severe, detailing how women must not take it, must not even touch it if it has been cut up or crushed.
However… That’s because it can carry a big risk to our unborn fetuses. So, if we are confident we definitely don’t have one of those, it’s not actually applicable to us.
That said, finasteride’s results in women aren’t nearly so clear-cut as in men (though also, there has been less research, largely because of the above). Here’s an interesting breakdown in more words than we have room for here:
Finasteride for Women: Everything You Need to Know
Spironolactone
This one’s generally prescribed to women, not men, largely because it’s the drug sometimes popularly known as a “chemical castration” drug, which isn’t typically great marketing for men (although it can be applied topically, which will have less of an effect on the rest of the body). For women, this risk is simply not an issue.
We’ll be brief on this one, but we’ll just drop this, so that you know it’s an option that works:
❝Spironolactone is an effective and safe treatment of androgenic alopecia which can enhance the efficacy when combined with other conventional treatments such as minoxidil.
Topical spironolactone is safer than oral administration and is suitable for both male and female patients, and is expected to become a common drug for those who do not have a good response to minoxidil❞
Minoxidil
This one is available (to men and women) without prescription. It’s applied topically, and works by shortcutting the hair’s hormonal growth cycle, to reduce the resting phase and kick it into a growth phase.
Does it work? Yes!
Any drawbacks? A few:
- Whereas you’ll remember finasteride takes 3–6 months to see any effect, this one will have an effect very quickly
- Specifically, the immediate effect is: your rate of hair loss will appear to dramatically speed up
- This happens because when hairs are kicked into their growth phase if they were in a resting phase, the first part of that growth phase is to shed each old hair to make room for the new one
- You’ll then need the same 3–6 months as with finasteride, to see the regrowth effects
- If you stop using it, you will immediately shed whatever hair you gained by this method
Why do people choose this over finasteride? For one of three reasons, mainly:
- They are women, and not offered finasteride
- They are men, and do not want the side effects of finasteride
- They just saw an ad and tried it
As to how it works:
Some final notes:
There are some other contraindications and warnings with each of these drugs by the way, so do speak with your doctor/pharmacist. For example:
- Finasteride can tax the liver a little
- Spironolactone can reduce bone turnover
- Minoxidil is a hypotensive; this shouldn’t be an issue for most people, but for some people it could be a problem
There are other hair loss remedies and practices, but the above three are the heavy-hitters, so that’s what we spent our time/space on today. We’ll perhaps cover the less powerful (but less risky) options one of these days.
Meanwhile, take care!
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Can We Do Fat Redistribution?
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The famous answer: no
The truthful answer: yes, and we are doing it all the time whether we want to or not, so we might as well know what things affect our fat distribution in various body parts.
There’s a kernel of truth in the “no”, though, and where that comes from is that we cannot exclusively put fat on in a certain area only, and nor can we do “spot reduction”, i.e., intentionally lose fat from only one place.
How, then, do we do fat redistribution?
Your body is a living organism, not a statue
It’s easy to think “I’ve been carrying this fat in this place for 20 years”, but during that time the fat has been replaced several times and moved often; in fact, the cells containing the fat have even been replaced. Because: fat can seem like a substance that’s alien to your body because it doesn’t respond like muscles, isn’t controllable like muscles, doesn’t have the same sensibility as muscles, etc. But, every bit of fat stored in your body is stored inside a fat cell; it’s not one big unit of fat; it’s lots of tiny ones.
In reality, any given bit of fat on your body has probably been there for 18–24 months at most:
Fat turnover in obese slower than average
…and there are assorted factors that can modify the rate at which our body deals with fat storage:
Human white adipose tissue: A highly dynamic metabolic organ
So, how do I get rid of this tummy?
There are plenty of stories of people who try to lose weight from one part of their body, and lose it from somewhere else instead. Say, a person wants to lose weight from her hips, and with careful diet and exercise, she loses weight—by dropping a couple of bra cup sizes while keeping the hips.
So, we must figure out: why is fat stored in certain places? And the main driving factors are:
- hormones
- metabolic health
- stress
Hormones affect fat distribution insofar as estrogen and progesterone will favor the hips, thighs, butt, breasts, and testosterone will favor a more central (but still subcutaneous, not visceral) distribution. Additionally, estrogen and progesterone will favor a higher body fat percentage, while testosterone will favor a lower one.
This is particularly relevant later in life, when suddenly the hormone(s) you’ve been relying on to keep your shape, are now declining, meaning your shape does too. This goes for everyone regardless of sex.
See:
- What You Should Have Been Told About The Menopause Beforehand
- The BAT-pause! ← this is about the conversion of white adipose tissue to brown adipose tissue, and how estrogen helps this happen
- Topping Up Testosterone?
Metabolic health affects fat distribution insofar as poor metabolic health will result in more fat being stored in the viscera, rather than in the usual subcutaneous places. This is a serious health risk.
See: Visceral Belly Fat & How To Lose It
Stress affects fat distribution insofar as chronically elevated cortisol levels see more fat sent to the stomach, face, and neck. This fat redistribution isn’t dangerous itself, but it can be indicative of the chronic stress, which does pose more of a general threat to health.
See: Lower Your Cortisol! (Here’s Why & How)
What this means in practical terms
Assuming that you would like the fat distribution that says “this is a healthy woman” or “this is a healthy man”, respectively, then you might want to:
- Check your sex hormone levels and get them adjusted if appropriate
- Improve your overall metabolic health—without necessarily trying to lose weight, just, take care of your blood sugars for example, and they will take care of you in terms of fat storage.
- Manage your stress (which includes any stress you are experiencing about your body not being how you’d like it to be).
If you are doing these things, and you don’t have any major untreated medical abnormalities that affect these things, then your fat will go to the places generally considered healthiest.
Can we speed it up?
Yes, we can! Firstly, we can speed up our overall metabolism:
Let’s Burn! Metabolic Tweaks And Hacks
Secondly, we can encourage our body to “move” fat by intentionally “yo-yoing”, something usually considered bad in dieting when people just want to lose weight and instead are going up and down, but: if you lose weight healthily, it comes off everywhere evenly, and if you gain weight healthily, it goes mostly to the places where it should be.
So, a sequence of lose-gain-lose-gain might look like “lose a bit from everywhere, put it back in the good place, lose a bit more from everywhere, put it back in the good place”, etc.
So, you might want to gently cycle these a few months apart, for example:
How To Lose Fat (Healthily!) | How To Gain Fat (Healthily!)
You can also cheat a little, if it suits your purpose! By this we mean: if you’d like a little extra where you already have a little fat, then you can put muscle on underneath it, it will pad it up, and (because of the layer of actual fat on top) nobody will know the difference unless you flex it with their hand on it.
Let’s put it this way: people doing squats for a bubble-butt aren’t doing it to put on fat; they’re putting muscle on under the fat they have.
So, check out: How To Gain Muscle (Healthily!)
And finally, for all your body-sculpting needs, we present these excellent books:
Women’s Strength Training Anatomy Workouts – by Frédéric Delavier
Strength Training Anatomy (For Men) – by Frédéric Delavier
Enjoy!
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Bushfire smoke affects children differently. Here’s how to protect them
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Bushfires are currently burning in Australian states including Victoria, Tasmania, Western Australia and South Australia. In some areas, fire authorities have warned residents about the presence of smoke.
Bushfire smoke is harmful to our health. Tiny particles of ash can lodge deep in the lungs.
Exposure to this type of smoke may worsen existing conditions such as asthma, and induce a range of health effects from irritation of the eyes, nose and throat to changes in the cardiovascular system.
Public health recommendations during smoke events tend to provide general advice, and don’t often include advice specifically geared at children. But children are not just little adults. They are uniquely vulnerable to environmental hazards such as bushfire smoke for a number of reasons.
Different physiology, different behaviour
Children’s lungs are still developing and maturing.
Airways are smaller in children, especially young children, which is associated with greater rates of particle deposition – when particles settle on the surfaces of the airways.
Children also breathe more air per kilogram of body weight compared with adults, and therefore inhale more polluted air relative to their size.
Further, children’s detoxification systems are still developing, so environmental toxins take longer to effectively clear from their bodies.
Meanwhile, children’s behaviour and habits may expose them to more environmental toxins than adults. For example, they tend to do more physical activity and spend more time outdoors. Higher levels of physical activity lead to more air inhaled per kilogram of body weight.
Also, a normal and important part of children’s early play is exploring their environment, including by putting things in their mouth. This can result in kids ingesting soil, dust and dirt, which often contain environmental contaminants.
For these reasons, it’s important to consider the specific needs of children when providing advice on what to do when there’s smoke in the air.
Keeping our environments healthy
The Australian government offers recommendations for minimising the health risks from exposure to bushfire smoke. The main advice includes staying indoors and keeping doors and windows closed.
This is great advice when the smoke is thick outside, but air pollutants may still accumulate inside the home. So it’s important to air your home once the smoke outside starts to clear. Take advantage of wind changes to open up and get air moving out of the house with a cross breeze.
Kids are natural scientists, so get them involved. For example, you and your child can “rate” the air each hour by looking at a landmark outside your home and rating how clearly you can see it. When you notice the haze is reducing, open up the house and clear the air.
Because air pollutants settle onto surfaces in our home and into household dust, an easy way to protect kids during smoky periods is to do a daily dust with a wet cloth and vacuum regularly. This will remove pollutants and reduce ingestion by children as they play. Frequent hand washing helps too.
Healthy bodies and minds
Research exploring the effects of bushfire smoke exposure on children’s health is sparse. However, during smoke events, we do see an increase in hospital visits for asthma, as well as children reporting irritation to their eyes, nose and throat.
If your child has asthma or another medical condition, ensure they take any prescribed medications on a regular schedule to keep their condition well controlled. This will minimise the risk of a sudden worsening of their symptoms with bushfire smoke exposure.
Make sure any action plans for symptom flare-ups are up to date, and ensure you have an adequate supply of in-date medication somewhere easy to locate and access.
Children may be anxious during a bushfire.
Media_Photos/ShutterstockKids can get worried during bushfires, and fire emergencies have been linked with a reduction in children’s mental health. Stories such as the Birdie’s Tree books can help children understand these events do pass and people help one another in times of difficulty.
Learning more about air pollution can help too. Our group has a children’s story explaining how air pollution affects our bodies and what can help.
It’s also important for parents and caregivers not to get too stressed, as children cope better when their parents manage their own anxiety and help their children do the same. Try to strike a balance between being vigilant and staying calm.
What about masks?
N95 masks can protect the wearer from fine particles in bushfire smoke, but their use is a bit complicated when it comes to kids. Most young children won’t be able to fit properly into an N95 mask, or won’t tolerate the tight fit for long periods. Also, their smaller airways make it harder for young children to breathe through a mask.
If you choose to use an N95 mask for your children, it’s best to save them for instances when high-level outdoor exposure is unavoidable, such as if you’re going outside when the smoke is very thick.
N95 masks should be replaced after around four hours or when they become damp.
If your child has an existing heart or lung condition, consult their doctor before having them wear an N95 mask.
Our team is currently recruiting for a study exploring the effects of bushfire smoke in children. If you live in south east Queensland and are interested in participating in the event of a bushfire or hazard reduction burn near your home, please express your interest here.
Dwan Vilcins, Group leader, Environmental Epidemiology, Children’s Health Environment Program, The University of Queensland; Nicholas Osborne, Associate Professor, School of Public Health, The University of Queensland, and Paul D. Robinson, Conjoint Professor in Respiratory and Sleep Medicine, Child Health Research Centre, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Learn to Age Gracefully
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