Infections, Heart Failure, & More
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Some health news to round off the week:
The Infection That Leads To Heart Failure
It’s long been held that, for example, flossing reduces heart disease risk, with the hypothesis being that if plaque bacteria enter the blood stream, well, that’s an even worse place for plaque bacteria to be. Now, with much more data, attention has turned to
- actual infections, and
- actual heart failure
Way to up the ante! And, it holds true regardless of what kind of infection. So, you might think that a UTI, for example, is surely “downstream” and should not affect the heart, but it does. Because of this, researchers currently believe that it is not the infection itself, so much as the body’s inflammation response to infection, that leads to the heart failure. Which is reasonable, because, for example, atherosclerosis is made mostly not of cholesterol itself, but rather mostly of dead immune cells that got stuck in the cholesterol.
Moreover, it’s not so much about the acute inflammatory response (which is almost always a good thing, circumstantially), but rather that after cases where an infection managed to take hold, the immune system can then often stay on high alert for many years alter. Long COVID is an obvious recent example of this, but it’s hardly a new phenomenon; see for example post-polio syndrome, and consider how many more such post-infection maladies are likely to exist that never got a name because they flew under the radar or got diagnosed as fibromyalgia or something (fibromyalgia is a common diagnosis doctors give when they acknowledge something’s wrong, and it causes pain and exhaustion, but they don’t know what, and it appears to be stable—so while it can be helpful to put a name to the collection of symptoms, it’s a non-diagnosis diagnosis on the doctors’ part. It’s saying “I diagnose you with hurty tiredness”).
The take-away from all this? Avoid infections, for your heart’s sake, and if you do get an infection, take it seriously even if it’s minor. The safe amount of infection is “no infection”.
Read in full: Study uncovers new link between infections and heart failure
Cold Water Immersion: Hot Or Not?
The evidence is clear for some benefits; for others, not so much:
- It’s great (if you’re already in fair health, and definitely not if you have a heart condition) to improve circulation and stress response
- There may be some benefits to immune function, but however reasonable the hypothesis, actual evidence is thin on the ground
- The oft-hyped mood benefits are a) marginal b) short-lived, with benefits fading after 3 months of regular cold baths/showers/etc
Read in full: The big chill: Is cold-water immersion good for our health?
Related: Ice Baths: To Dip Or Not To Dip?
The Unspoken Trials Of Going To The Gym (While Being A Woman)
Public health decision-makers often think that getting people to go to the gym more is a matter of public information, or perhaps branding. Some who have their thinking heads on might even realize that there may be economic factors for many. But for women, there’s an additional factor—or rather, an additionally prominent factor. The study we’ll link started with this observation (please read it in the voice of your favorite nature documentary narrator):
❝Despite an increase in gym memberships, women are less active than men and little is known about the barriers women face when navigating gym spaces.❞
What then, of these shy, elusive creatures that make up a mere 51% of the world’s population?
A medium-sized (n=279) study of women, of whom 84% being current gym-goers, reported often feeling “judged for their appearance or performance, as well as having to fight for space in the gym and to be taken seriously, while navigating harassment and unsolicited comments from men”
Even gym attire becomes an issue:
❝Aligning with previous literature, women often chose attire based on comfort and functionality. However, their choices were also influenced by comparisons with others or fear of judgement for wearing non-branded attire or looking too put together. Many women also chose gym attire to hide perceived problem areas or avoid appearance concerns, including visible sweat stains.❞
…which main seem silly; you’re at the gym, of course you’re going to sweat, but if you’re the only one with visible sweat stains, then there can be social consequences (bad ones).
Similarly, there’s a “damned if you do; damned if you don’t” when it comes to working out while fat—on the one hand, society conflates fatness with laziness; on the other, it can be extra intimidating to be the only fat person in a gym full of people who look like they’re going to audition for a superhero movie.
❝In the gym, just like in other areas of life, women often feel stuck between being seen as ‘too much’ and ‘not enough’, dealing with judgement about how they look, how they perform, and even how much space they take up. Even though the pressure to be super thin is decreasing, the growing focus on being muscular and athletic is creating new challenges. It is pushing unrealistic standards that can negatively affect women’s body image and overall well-being.❞
Writer’s note: I live a few minutes walk from my nearest gym, and I work out at home instead. This way, if I want to do yoga in my pajamas, I can. If I want to use my treadmill naked and watch my T+A bounce in the mirror, I can. If I want to lift weights in the dress I happened to be wearing, I can. Alas that I can’t swim at home!
Read in full: Women face multiple barriers while exercising in gyms
Related: Body Image Dissatisfaction/Appreciation Across The Ages
Take care!
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How To Rebuild Your Neurons’ Myelin Sheaths
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PS: We Love You
Phosphatidylserine, or “PS” for short, is a phospholipid found in the brain. In other words, a kind of fatty compound that is such stuff as our brains are made of.
In particular, it’s required for healthy nerve cell membranes and myelin (the protective sheath that neurons live in—basically, myelin sheaths do for neurons what telomere caps do for DNA).
For an overview that’s more comprehensive than we have room for here, check out:
Phosphatidylserine and the human brain
Many people take it as a supplement.
Does taking it as a supplement work?
This is a valid question, as a lot of supplements can’t be absorbed well, and/or can’t pass the blood-brain barrier. But, as the above-linked study notes:
❝Exogenous PS (300-800 mg/d) is absorbed efficiently in humans, crosses the blood-brain barrier, and safely slows, halts, or reverses biochemical alterations and structural deterioration in nerve cells. It supports human cognitive functions, including the formation of short-term memory, the consolidation of long-term memory, the ability to create new memories, the ability to retrieve memories, the ability to learn and recall information, the ability to focus attention and concentrate, the ability to reason and solve problems, language skills, and the ability to communicate. It also supports locomotor functions, especially rapid reactions and reflexes.❞
(“Exogenous” means “coming from outside of the body”, as opposed to “endogenous”, meaning “made inside the body”. Effectively, in this context “exogenous” means “taken as a supplement”.)
Why do people take it?
The health claims for phosphatidylserine fall into two main categories:
- Neuroprotection (helping your brain to avoid age-related decline in the long term)
- Cognitive enhancement (helping your brain work better in the short term)
What does the science say?
There’s a lot of science that’s been done on the neuroprotective properties of PS, and there are thousands of studies we could draw from here. The upshot is that regular phosphatidylserine supplementation (most often 300mg/day, but studies are also found for 100–500mg/day) is strongly associated with a reduction in cognitive decline over the course of 12 weeks (a common study duration). Here are a some spotlight studies showing this:
- Effects of phosphatidylserine in Alzheimer’s disease
- Double-blind cross-over study of phosphatidylserine vs. placebo in patients with early dementia of the Alzheimer type
- Effect of Phosphatidylserine on Cerebral Glucose Metabolism in Alzheimer’s Disease
- The effect of soybean-derived phosphatidylserine on cognitive performance in elderly with subjective memory complaints
Note: PS can be derived from various sources, with the two most common forms being bovine (i.e., from cow brains) or soy-derived.
There is no established difference in the efficacy of these.
There have been some concerns raised about the risk of CJD (the human form of BSE, as in “mad cow disease”) from consuming brain matter from cows, but studies have not found any evidence of this actually happening.
There is also some evidence that phosphatidyserine significantly boosts cognitive performance, even in young people with no extant cognitive decline, for example:
(as the title suggests, they did also test for its effect on mood and endocrine response, but found it made no difference to those, just the cognitive function—which enjoyed a boost before exercise, as well as after it, meaning that the boost wasn’t dependent on the exercise)
PS for cognitive enhancement in the young and healthy is not nearly so well-explored as its use as a later-life guard against age-related cognitive decline. However, just because the studies in younger people are dwarfed in number by the studies in older people, doesn’t detract from the validity of the studies in younger people.
Basically: its use in older people has been studied the most, but all available evidence points to it being beneficial to brain health at all ages.
Where can we get it?
We don’t sell it (or anything else), but for your convenience, here’s an example product on Amazon.
Enjoy!
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Digital Minimalism – by Dr. Cal Newport
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There are a lot of books that advise “Unplug once in a while, and go outside”. But it doesn’t really take a book to convey that, does it? And it just leaves all the digital catching-up once we get back. Surely there must be a better way?
Rather than relying on a “digital detox”, Dr. Newport offers principles to apply to our digital lives, that allow us to reap the benefits of modern information technology without being obeisant to it.
The book’s greatest strength lies in that; having clear guidelines that can be applied to cut out the extra weight of digital media that has simply snuck in because of The Almighty Algorithm—and even tips on how to engage more mindfully with that if we still want to, for example using social media only in a web browser rather than on our phones, so that we can ringfence the time for it rather than having it spill into every spare moment.
In the category of criticism, the book sometimes lacks a little awareness when it comes to assumptions about the reader and the reader’s social circles; that (for example) nobody has any disabilities and everyone lives in the same town. But for most people most of the time, the advices will stand, and the exceptions can be managed by the reader neatly enough.
Stylistically, the book is not very minimalist, but this is not inconsistent with the advice of the book, if you’re curling up in the armchair with a physical copy, or a single-purpose ereader device.
Bottom line: if you’d like to streamline your use of digital media, but don’t want to lose out on the value it brings you, this book provides an excellent template
Click here to check out Digital Minimalism, and choose focused life in a noisy world!
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Menopause can bring increased cholesterol levels and other heart risks. Here’s why and what to do about it
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Menopause is a natural biological process that marks the end of a woman’s reproductive years, typically between 45 and 55. As women approach or experience menopause, common “change of life” concerns include hot flushes, sweats and mood swings, brain fog and fatigue.
But many women may not be aware of the long-term effects of menopause on the heart and blood vessels that make up the cardiovascular system. Heart disease accounts for 35% of deaths in women each year – more than all cancers combined.
What should women – and their doctors – know about these risks?
Hormones protect hearts – until they don’t
As early as 1976, the Framingham Heart Study reported more than twice the rates of cardiovascular events in postmenopausal than pre-menopausal women of the same age. Early menopause (younger than age 40) also increases heart risk.
Before menopause, women tend to be protected by their circulating hormones: oestrogen, to a lesser extent progesterone and low levels of testosterone.
These sex hormones help to relax and dilate blood vessels, reduce inflammation and improve lipid (cholesterol) levels. From the mid-40s, a decline in these hormone levels can contribute to unfavourable changes in cholesterol levels, blood pressure and weight gain – all risk factors for heart disease.
Speedkingz/Shutterstock 4 ways hormone changes impact heart risk
1. Dyslipidaemia– Menopause often involves atherogenic changes – an unhealthy imbalance of lipids in the blood, with higher levels of total cholesterol, triglycerides, and low-density lipoprotein (LDL-C), dubbed the “bad” cholesterol. There are also reduced levels of high-density lipoprotein (HDL-C) – the “good” cholesterol that helps remove LDL-C from blood. These changes are a major risk factor for heart attack or stroke.
2. Hypertension – Declines in oestrogen and progesterone levels during menopause contribute to narrowing of the large blood vessels on the heart’s surface, arterial stiffness and raise blood pressure.
3. Weight gain – Females are born with one to two million eggs, which develop in follicles. By the time they stop ovulating in midlife, fewer than 1,000 remain. This depletion progressively changes fat distribution and storage, from the hips to the waist and abdomen. Increased waist circumference (greater than 80–88 cm) has been reported to contribute to heart risk – though it is not the only factor to consider.
4. Comorbidities – Changes in body composition, sex hormone decline, increased food consumption, weight gain and sedentary lifestyles impair the body’s ability to effectively use insulin. This increases the risk of developing metabolic syndromes such as type 2 diabetes.
While risk factors apply to both genders, hypertension, smoking, obesity and type 2 diabetes confer a greater relative risk for heart disease in women.
So, what can women do?
Every woman has a different level of baseline cardiovascular and metabolic risk pre-menopause. This is based on their genetics and family history, diet, and lifestyle. But all women can reduce their post-menopause heart risk with:
- regular moderate intensity exercise such as brisk walking, pushing a lawn mower, riding a bike or water aerobics for 30 minutes, four or five times every week
- a healthy heart diet with smaller portion sizes (try using a smaller plate or bowl) and more low-calorie, nutrient-rich foods such as vegetables, fruit and whole grains
- plant sterols (unrefined vegetable oil spreads, nuts, seeds and grains) each day. A review of 14 clinical trials found plant sterols, at doses of at least 2 grams a day, produced an average reduction in serum LDL-C (bad cholesterol) of about 9–14%. This could reduce the risk of heart disease by 25% in two years
- less unhealthy (saturated or trans) fats and more low-fat protein sources (lean meat, poultry, fish – especially oily fish high in omega-3 fatty acids), legumes and low-fat dairy
- less high-calorie, high-sodium foods such as processed or fast foods
- a reduction or cessation of smoking (nicotine or cannabis) and alcohol
- weight-gain management or prevention.
Exercise can reduce post-menopause heart disease risk. Monkey Business Images/Shutterstock What about hormone therapy medications?
Hormone therapy remains the most effective means of managing hot flushes and night sweats and is beneficial for slowing the loss of bone mineral density.
The decision to recommend oestrogen alone or a combination of oestrogen plus progesterone hormone therapy depends on whether a woman has had a hysterectomy or not. The choice also depends on whether the hormone therapy benefit outweighs the woman’s disease risks. Where symptoms are bothersome, hormone therapy has favourable or neutral effects on coronary heart disease risk and medication risks are low for healthy women younger than 60 or within ten years of menopause.
Depending on the level of stroke or heart risk and the response to lifestyle strategies, some women may also require medication management to control high blood pressure or elevated cholesterol levels. Up until the early 2000s, women were underrepresented in most outcome trials with lipid-lowering medicines.
The Cholesterol Treatment Trialists’ Collaboration analysed 27 clinical trials of statins (medications commonly prescribed to lower cholesterol) with a total of 174,000 participants, of whom 27% were women. Statins were about as effective in women and men who had similar risk of heart disease in preventing events such as stroke and heart attack.
Every woman approaching menopause should ask their GP for a 20-minute Heart Health Check to help better understand their risk of a heart attack or stroke and get tailored strategies to reduce it.
Treasure McGuire, Assistant Director of Pharmacy, Mater Health SEQ in conjoint appointment as Associate Professor of Pharmacology, Bond University and as Associate Professor (Clinical), The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Top 10 Foods That Promote Lymphatic Drainage and Lymph Flow
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Melissa Gallagher, a naturopath by profession, recommends the following 10 foods that she says promote lymphatic drainage and lymph flow, as well as the below-mentioned additional properties:
Ginger
Ginger is a natural anti-inflammatory, which we wrote about here:
Ginger Does A Lot More Than You Think
Turmeric
Turmeric is another natural anti-inflammatory, which we wrote about here:
Why Curcumin (Turmeric) Is Worth Its Weight In Gold
Garlic
Garlic is—you guessed it—another natural anti-inflammatory which we wrote about here:
The Many Health Benefits Of Garlic
Pineapple
Pineapple contains a collection of enzymes collectively called bromelain—which is a unique kind of anti-inflammatory, and which we have written about here:
Bromelain vs Inflammation & Much More
Citrus
Citrus fruits like oranges, lemons, and grapefruits are rich in vitamin C, which can help support the immune system in general.
Cranberry
Cranberries contain antioxidants and anti-inflammatory compounds, which we wrote about here:
Health Benefits Of Cranberries (But: You’d Better Watch Out)
The video also explains how cranberry bioactives inhibit adipogenesis and reduces fat congestion in your lymphatic system.
Dandelion Tea
Dandelion is a natural diuretic and anti-inflammatory herb, which we’ve not written about yet!
Nettle Tea
Nettle is a natural diuretic and anti-inflammatory herb, which we’ve also not written about yet!
Healthy Fats
Healthy fats like avocado, nuts, and olive oil can help reduce inflammation and support the immune system.
Fermented Foods
Fermented foods, such as kimchi and sauerkraut, contain probiotics that can improve gut health, which in turn boosts the immune system. You can read all about it here:
Making Friends With Your Gut (You Can Thank Us Later)
Want the full explanation? Here’s the video:
Click Here If The Embedded Video Doesn’t Load Automatically!
How was the video? If you’ve discovered any great videos yourself that you’d like to share with fellow 10almonds readers, then please do email them to us!
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Minimize Aging’s Metabolic Slump
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It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small
❝I know that metabolism slows with age, are there any waypoints or things to look out for? I don’t know whether I should be eating less, or doing less, or taking some other approach entirely. What’s recommended?❞
Age and sex count for a lot with this one! As metabolism is in large part directed by hormones:
- For men, declining testosterone (often from around 45 onwards) can result in a metabolic slump
- For women, declining estrogen with the menopause does have an effect, but progesterone is the bigger factor for metabolism in the sense you are talking about.
In both cases, simply taking more of those hormones can often help, but please of course speak with an endocrinologist if that seems like a possible option for you, as your circumstances (and physiology) may vary.
If you’d like to go to that conversation well-armed with information, here are some good starting points, by the way:
- The Testosterone Drop, & Topping Up Testosterone
- Menopausal HRT: Bioidentical vs Animal (It Makes A Difference!)
And if you’re wondering about the natural vs pharmaceutical approaches…
- What Does “Balance Your Hormones” Even Mean?
- What You Should Have Been Told About The Menopause Beforehand
About your metabolic base rate
We tend to think of “fast metabolism good, slow metabolism bad”, and that’s a reasonable general premise… but it’s not necessarily always so.
After all, if you could double your metabolism and keep it there all the time, without changing anything else, well… You’ve heard the phrase “burning the candle at both ends”? So, having at least some downtime is important too.
See for example: Sleep Deprivation & Diabetes Risk
What’s critical, when it comes to base metabolic rate, is that your body must be capable of adequately processing what you are putting into it. Because if your body can’t keep up with the input, it’ll just start storing the excess chemical energy in the quickest and easiest way possible.
…which is a fast track to metabolic disorder in general and type 2 diabetes in particular. For more on the science and mechanics of this, see:
How To Prevent And Reverse Type 2 Diabetes
As for portion sizes…
Your body knows what you need, so listen to it. There is no external source of knowledge that can tell you how much food you need better than your own body itself can tell you.
You may be wondering “how exactly do I listen to my body, though?”, in which case, check out:
The Kitchen Doctor: Interoception & Mindful Eating
As for exercise…
When you exercise, your metabolic rate temporarily increases. After most kinds of exercise, your metabolism slumps again afterwards to compensate.
There are two ways to avoid this:
- Exercise Less, Move More ← it’s about maximizing time spent not sitting still
- High Intensity Interval Training ← a special kind of exercise, the only one known to keep the metabolism running high for a couple of hours afterwards, with no counter-slump
…which makes it pretty effective indeed
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Make Time – by Jake Knapp and John Zeratzky
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We live in an information-saturated world, and we have done for so long now that it’s easy to forget: we did not evolve for this!
It’s easy to say “unplug”, but the reality is:
We also have to actually function in this fast-paced info-dense world whether we want to or not, and we are expected to be able to handle it.
So… How?
Appropriately enough, authors Knapp and Zeratsky present the answer in a skimmer-friendly fashion, with summaries and bullet points and diagrams and emboldened text forease of speed-reading. Who uses such tricks?!
In short, less living life in “default mode scramble” and more about making an impact in the ways you actually want to, for you.
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