Walk Like You’re 20 Years Younger Again
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How fit, healthy, strong, and mobile were you 20 years ago? For most people, the answer is “better than now”. Physiotherapist Dr. Doug Weiss has advice on turning back the clock:
The exercises
If you already have no problems walking, this one is probably not for you. However, if you’re not so able to comfortably walk as you used to be, then Dr. Weiss recommends:
- Pillow squat: putting pillow on a chair, crossing hands on chest, standing up and sitting down. Similar to the very important “getting up off the floor without using your hands” exercise, but easier.
- Wall leaning: standing against a wall with heels 4″ away from it, crossing arms over chest again, and pulling the body off the wall using the muscles in the front of the shin. Note, this means not cheating by using other muscles, leveraging the upper body, pushing off with the buttocks, or anything else like that.
- Stepping forward: well, this certainly is making good on the promise of walking like we did 20 years ago; there sure was a lot of stepping forward involved. More seriously, this is actually about stepping over some object, first with support, and then without.
- Heel raise: is what it sounds like, raising up on toes and back down again; first with support, then without.
- Side stepping: step sideways 2–3 steps in each direction. First with support, then without. Bonus: if your support is your partner, then congratulations, you are now dancing bachata.
For more details (and visual demonstration) of these exercises and more, enjoy:
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Want to learn more?
You might also like:
4 Tips To Stand Without Using Hands
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Constipation increases your risk of a heart attack, new study finds – and not just on the toilet
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If you Google the terms “constipation” and “heart attack” it’s not long before the name Elvis Presley crops up. Elvis had a longstanding history of chronic constipation and it’s believed he was straining very hard to poo, which then led to a fatal heart attack.
We don’t know what really happened to the so-called King of Rock “n” Roll back in 1977. There were likely several contributing factors to his death, and this theory is one of many.
But after this famous case researchers took a strong interest in the link between constipation and the risk of a heart attack.
This includes a recent study led by Australian researchers involving data from thousands of people.
Elvis Presley was said to have died of a heart attack while straining on the toilet. But is that true? Kraft74/Shutterstock Are constipation and heart attacks linked?
Large population studies show constipation is linked to an increased risk of heart attacks.
For example, an Australian study involved more than 540,000 people over 60 in hospital for a range of conditions. It found constipated patients had a higher risk of high blood pressure, heart attacks and strokes compared to non-constipated patients of the same age.
A Danish study of more than 900,000 people from hospitals and hospital outpatient clinics also found that people who were constipated had an increased risk of heart attacks and strokes.
It was unclear, however, if this relationship between constipation and an increased risk of heart attacks and strokes would hold true for healthy people outside hospital.
These Australian and Danish studies also did not factor in the effects of drugs used to treat high blood pressure (hypertension), which can make you constipated.
Researchers have studied thousands of people to see if there’s a link between constipation and heart attacks. fongbeerredhot/Shutterstock How about this new study?
The recent international study led by Monash University researchers found a connection between constipation and an increased risk of heart attacks, strokes and heart failure in a general population.
The researchers analysed data from the UK Biobank, a database of health-related information from about half a million people in the United Kingdom.
The researchers identified more than 23,000 cases of constipation and accounted for the effect of drugs to treat high blood pressure, which can lead to constipation.
People with constipation (identified through medical records or via a questionnaire) were twice as likely to have a heart attack, stroke or heart failure as those without constipation.
The researchers found a strong link between high blood pressure and constipation. Individuals with hypertension who were also constipated had a 34% increased risk of a major heart event compared to those with just hypertension.
The study only looked at the data from people of European ancestry. However, there is good reason to believe the link between constipation and heart attacks applies to other populations.
A Japanese study looked at more than 45,000 men and women in the general population. It found people passing a bowel motion once every two to three days had a higher risk of dying from heart disease compared with ones who passed at least one bowel motion a day.
How might constipation cause a heart attack?
Chronic constipation can lead to straining when passing a stool. This can result in laboured breathing and can lead to a rise in blood pressure.
In one Japanese study including ten elderly people, blood pressure was high just before passing a bowel motion and continued to rise during the bowel motion. This increase in blood pressure lasted for an hour afterwards, a pattern not seen in younger Japanese people.
One theory is that older people have stiffer blood vessels due to atherosclerosis (thickening or hardening of the arteries caused by a build-up of plaque) and other age-related changes. So their high blood pressure can persist for some time after straining. But the blood pressure of younger people returns quickly to normal as they have more elastic blood vessels.
As blood pressure rises, the risk of heart disease increases. The risk of developing heart disease doubles when systolic blood pressure (the top number in your blood pressure reading) rises permanently by 20 mmHg (millimetres of mercury, a standard measure of blood pressure).
The systolic blood pressure rise with straining in passing a stool has been reported to be as high as 70 mmHg. This rise is only temporary but with persistent straining in chronic constipation this could lead to an increased risk of heart attacks.
High blood pressure from straining on the toilet can last after pooing, especially in older people. Andrey_Popov/Shutterstock Some people with chronic constipation may have an impaired function of their vagus nerve, which controls various bodily functions, including digestion, heart rate and breathing.
This impaired function can result in abnormalities of heart rate and over-activation of the flight-fight response. This can, in turn, lead to elevated blood pressure.
Another intriguing avenue of research examines the imbalance in gut bacteria in people with constipation.
This imbalance, known as dysbiosis, can result in microbes and other substances leaking through the gut barrier into the bloodstream and triggering an immune response. This, in turn, can lead to low-grade inflammation in the blood circulation and arteries becoming stiffer, increasing the risk of a heart attack.
This latest study also explored genetic links between constipation and heart disease. The researchers found shared genetic factors that underlie both constipation and heart disease.
What can we do about this?
Constipation affects around 19% of the global population aged 60 and older. So there is a substantial portion of the population at an increased risk of heart disease due to their bowel health.
Managing chronic constipation through dietary changes (particularly increased dietary fibre), increased physical activity, ensuring adequate hydration and using medications, if necessary, are all important ways to help improve bowel function and reduce the risk of heart disease.
Vincent Ho, Associate Professor and clinical academic gastroenterologist, Western Sydney University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Radical Remission – by Dr. Kelly Turner
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First, what this is not:an autobiographical account of the “I beat cancer and you can too” pep-talk style.
What it is: a very readable pop-science book based on the author’s own PhD research into radical remission.
She knew that a very small percentage of people experience spontaneous radical remission (or quasi-spontaneous, if the remission is attributed to lifestyle changes, and/or some alternative therapy), but a small percentage of people means a large number worldwide, so she travelled the world studying over 1,000 cases of people with late-stage cancer who had either not gone for conventional anticancer drugs, or had and then stopped, and lived to tell the tale.
While she doesn’t advocate for any particular alternative therapy, she does report on what things came to her attention. She does advocate for some lifestyle changes.
Perhaps the biggest value this book offers is in its promised “9 key factors that can make a real difference”, which are essentially her conclusions from her PhD dissertation.
There isn’t room to talk about them here in a way that wouldn’t be misleading/unhelpful for a paucity of space, so perhaps we’ll do a main feature one of these days.
Bottom line: if you have (or a loved one has) cancer, this is an incredibly sensible book to read. If you don’t, then it’s an interesting and thought-provoking book to read.
Click here to check out Radical Remission, and learn about the factors at hand!
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The Other Significant Others – by Rhaina Cohen
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As we get older, it’s a function of statistics that increasingly many of us are divorced or widowed. While some will—after whatever time seems right to them—get back into dating, what about those of us who decide that we won’t?
Rhaina Cohen explores the importance of friendship, mutual support, and (Platonic!) closeness and yes, even kinds of intimacy (for that too can be Platonic!) as we go on.
Even from a purely evolutionary approach, we are fundamentally social creatures, and while as individuals we may exist on a spectrum from reclusive to extroverted, we all thrive better when we at least have access to community and friends.
The style of the book is easy-reading and exploratory, and is very compelling as a call-to-arms for those who may wish to give/receive support to/from those with whom we are not necessarily sleeping.
Because at the end of the day, why should sex and/or romance be a required feature for legal protections? Aren’t we adults who can make our own decisions about whom we trust to care for us?
Bottom line: if you’re happily partnered and expect to pre-decease your partner, this book might not be directly important for you (it might for your partner, though). Everyone else? This book may be important at some point. That point might even be now already; only you know.
Click here to check out The Other Significant Others, and make your own choices in life!
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What are heart rate zones, and how can you incorporate them into your exercise routine?
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If you spend a lot of time exploring fitness content online, you might have come across the concept of heart rate zones. Heart rate zone training has become more popular in recent years partly because of the boom in wearable technology which, among other functions, allows people to easily track their heart rates.
Heart rate zones reflect different levels of intensity during aerobic exercise. They’re most often based on a percentage of your maximum heart rate, which is the highest number of beats your heart can achieve per minute.
But what are the different heart rate zones, and how can you use these zones to optimise your workout?
The three-zone model
While there are several models used to describe heart rate zones, the most common model in the scientific literature is the three-zone model, where the zones may be categorised as follows:
- zone 1: 55%–82% of maximum heart rate
- zone 2: 82%–87% of maximum heart rate
- zone 3: 87%–97% of maximum heart rate.
If you’re not sure what your maximum heart rate is, it can be calculated using this equation: 208 – (0.7 × age in years). For example, I’m 32 years old. 208 – (0.7 x 32) = 185.6, so my predicted maximum heart rate is around 186 beats per minute.
There are also other models used to describe heart rate zones, such as the five-zone model (as its name implies, this one has five distinct zones). These models largely describe the same thing and can mostly be used interchangeably.
What do the different zones involve?
The three zones are based around a person’s lactate threshold, which describes the point at which exercise intensity moves from being predominantly aerobic, to predominantly anaerobic.
Aerobic exercise uses oxygen to help our muscles keep going, ensuring we can continue for a long time without fatiguing. Anaerobic exercise, however, uses stored energy to fuel exercise. Anaerobic exercise also accrues metabolic byproducts (such as lactate) that increase fatigue, meaning we can only produce energy anaerobically for a short time.
On average your lactate threshold tends to sit around 85% of your maximum heart rate, although this varies from person to person, and can be higher in athletes.
Wearable technology has taken off in recent years. Ketut Subiyanto/Pexels In the three-zone model, each zone loosely describes one of three types of training.
Zone 1 represents high-volume, low-intensity exercise, usually performed for long periods and at an easy pace, well below lactate threshold. Examples include jogging or cycling at a gentle pace.
Zone 2 is threshold training, also known as tempo training, a moderate intensity training method performed for moderate durations, at (or around) lactate threshold. This could be running, rowing or cycling at a speed where it’s difficult to speak full sentences.
Zone 3 mostly describes methods of high-intensity interval training, which are performed for shorter durations and at intensities above lactate threshold. For example, any circuit style workout that has you exercising hard for 30 seconds then resting for 30 seconds would be zone 3.
Striking a balance
To maximise endurance performance, you need to strike a balance between doing enough training to elicit positive changes, while avoiding over-training, injury and burnout.
While zone 3 is thought to produce the largest improvements in maximal oxygen uptake – one of the best predictors of endurance performance and overall health – it’s also the most tiring. This means you can only perform so much of it before it becomes too much.
Training in different heart rate zones improves slightly different physiological qualities, and so by spending time in each zone, you ensure a variety of benefits for performance and health.
So how much time should you spend in each zone?
Most elite endurance athletes, including runners, rowers, and even cross-country skiers, tend to spend most of their training (around 80%) in zone 1, with the rest split between zones 2 and 3.
Because elite endurance athletes train a lot, most of it needs to be in zone 1, otherwise they risk injury and burnout. For example, some runners accumulate more than 250 kilometres per week, which would be impossible to recover from if it was all performed in zone 2 or 3.
Of course, most people are not professional athletes. The World Health Organization recommends adults aim for 150–300 minutes of moderate intensity exercise per week, or 75–150 minutes of vigorous exercise per week.
If you look at this in the context of heart rate zones, you could consider zone 1 training as moderate intensity, and zones 2 and 3 as vigorous. Then, you can use heart rate zones to make sure you’re exercising to meet these guidelines.
What if I don’t have a heart rate monitor?
If you don’t have access to a heart rate tracker, that doesn’t mean you can’t use heart rate zones to guide your training.
The three heart rate zones discussed in this article can also be prescribed based on feel using a simple 10-point scale, where 0 indicates no effort, and 10 indicates the maximum amount of effort you can produce.
With this system, zone 1 aligns with a 4 or less out of 10, zone 2 with 4.5 to 6.5 out of 10, and zone 3 as a 7 or higher out of 10.
Heart rate zones are not a perfect measure of exercise intensity, but can be a useful tool. And if you don’t want to worry about heart rate zones at all, that’s also fine. The most important thing is to simply get moving.
Hunter Bennett, Lecturer in Exercise Science, University of South Australia
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Radishes vs Endives – Which is Healthier?
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Our Verdict
When comparing radishes to endives, we picked the endives.
Why?
These are both great, but there’s a clear winner here in every category!
In terms of macros, radishes have more carbs while endives have more fiber and protein.
In the category of vitamins, radishes have more of vitamins B6 and C, while endives have more of vitamins A, B1, B2, B4, B5, B7, B9, E, K, and choline.
When it comes to minerals, things are not less one-sided: radishes have more selenium, while endives have more calcium, copper, iron, magnesium, manganese, phosphorus, potassium, and zinc.
You may be thinking: but what about radishes’ shiny red bit? Doesn’t that usually mean more of something important, like carotenoids or anthocyanins or something? And the answer is that the red pigment in radishes is so thinly-distributed on the exterior that it’s barely there and if we’re looking at values per 100g, it’s a tiny fraction of a tiny fraction.
In both cases, their bitter taste comes mostly from flavonols, of which mostly kaempferol, of which endives have about 20x what radishes have, on average.
All in all, an overwhelming win for endives.
Want to learn more?
You might like to read:
Enjoy Bitter Foods For Your Heart & Brain
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The BAT-pause!
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When Cold Weather & The Menopause Battle It Out
You may know that (moderate, safe) exposure to the cold allows our body to convert our white and yellow fat into the much healthier brown fat—also called brown adipose tissue, or “BAT” to its friends.
If you didn’t already know that, then well, neither did scientists until about 15 years ago:
The Changed Metabolic World with Human Brown Adipose Tissue: Therapeutic Visions
You can read more about it here:
Cool Temperature Alters Human Fat and Metabolism
This is important, especially because the white fat that gets converted is the kind that makes up most visceral fat—the kind most associated with all-cause mortality:
Visceral Belly Fat & How To Lose It ← this is not the same as your subcutaneous fat, the kind that sits directly under your skin and keeps you warm; this is the fat that goes between your organs and of which we should only have a small amount!
The BAT-pause
It’s been known (since before the above discovery) that BAT production slows considerably as we get older. Not too shocking—after all, many metabolic functions slow as we get older, so why should fat regulation be any different?
But! Rodent studies found that this was tied less to age, but to ovarian function: rats who underwent ovariectomies suffered reduced BAT production, regardless of their age.
Naturally, it’s been difficult to recreate such studies in humans, because it’s difficult to find a large sample of young adults willing to have their ovaries whipped out (or even suppressed chemically) to see how badly their metabolism suffers as a result.
Nor can an observational study (for example, of people who incidentally have ovaries removed due to ovarian cancer) usefully be undertaken, because then the cancer itself and any additional cancer treatments would be confounding factors.
Perimenopausal study to the rescue!
A recent (published last month, at time of writing!) study looked at women around the age of menopause, but specifically in cohorts before and after, measuring BAT metabolism.
By dividing the participants into groups based on age and menopausal status, and dividing the post-menopausal group into “takes HRT” and “no HRT” groups, and dividing the pre-menopausal group into “normal ovarian function” and “ovarian production of estrogen suppressed to mimic slightly early menopause” groups (there’s a drug for that), and then having groups exposed to warm and cold temperatures, and measuring BAT metabolism in all cases, they were able to find…
It is about estrogen, not age!
You can read more about the study here:
“Good” fat metabolism changes tied to estrogen loss, not necessarily to aging, shows study
…and the study itself, here:
Brown adipose tissue metabolism in women is dependent on ovarian status
What does this mean for men?
This means nothing directly for (cis) men, sorry.
But to satisfy your likely curiosity: yes, testosterone does at least moderately suppress BAT metabolism—based on rodent studies, anyway, because again it’s difficult to find enough human volunteers willing to have their testicles removed for science (without there being other confounding variables in play, anyway):
Testosterone reduces metabolic brown fat activity in male mice
So, that’s bad per se, but there isn’t much to be done about it, since the rest of your (addressing our male readers here) metabolism runs on testosterone, as do many of your bodily functions, and you would suffer many unwanted effects without it.
However, as men do typically have notably less body fat in general than women (this is regulated by hormones), the effects of changes in BAT metabolism are rather less pronounced in men (per testosterone level changes) than in women (per estrogen level changes), because there’s less overall fat to convert.
In summary…
While menopausal HRT is not necessarily a silver bullet to all metabolic problems, its BAT-maintaining ability is certainly one more thing in its favor.
See also:
Dr. Jen Gunter | What You Should Have Been Told About The Menopause Beforehand
Take care!
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