Top 10 Causes Of High Blood Pressure
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As Dr. Frita Fisher explains, these are actually the top 10 known causes of high blood pressure. Number zero on the list would be “primary hypertension”, which means high blood pressure with no clear underlying cause.
Superficially, this feels a little like the sometime practice of writing the catch-all “heart failure” as the cause of death on a death certificate, because yes, that heart sure did stop beating. But in reality, primary hypertension is most likely often caused by such things as unmanaged chronic stress—something that doesn’t show up on most health screenings.
Dr. Fisher’s Top 10
- Thyroid disease: both hyperthyroidism and hypothyroidism can cause high blood pressure.
- Obstructive sleep apnea: characterized by snoring, daytime sleepiness, and headaches, this condition can lead to hypertension.
- Chronic kidney disease: diseases ranging from diabetic nephropathy to renal vascular disease can cause high blood pressure.
- Elevated cortisol levels: conditions like Cushing’s syndrome or disease, which involve high cortisol levels, can lead to hypertension—as can a lifestyle with a lot of chronic stress, but that’s less readily diagnosed as such than something one can tell from a blood test.
- Elevated aldosterone levels: excess aldosterone from the adrenal glands causes the body to retain salt and water, increasing blood pressure, because more stuff = more pressure.
- Brain tumor: tumors that increase intracranial pressure can cause a rise in blood pressure to ensure adequate brain perfusion. In these cases, the hypertension is keeping you alive—unless it kills you first. If this seems like a strange bodily response, remember that our bodily response to an infection is often fever, to kill off the infection which can’t survive at such high temperatures (but neither can we, so it becomes a game of chicken with our life on the line), so sometimes our body does kill us with one thing while trying to save us from another.
- Coarctation of the aorta: this congenital heart defect results in narrowing of the aorta, leading to hypertension, especially in the upper body.
- Pregnancy: pregnancy can either induce or worsen existing hypertension.
- Obesity: excess weight increases blood flow and pressure on arteries, raising the risk of hypertension and associated conditions, e.g. diabetes etc.
- Drugs: certain medications and recreational drugs (including, counterintuitively, alcohol!) can elevate blood pressure.
For more information on each of these, enjoy:
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Want to learn more?
You might also like to read:
Hypertension: Factors Far More Relevant Than Salt
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Are You Eating AGEs?
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The Trouble of the AGEs
Advanced Glycation End-Products (AGEs) are the result of the chemical process of glycation, which can occur in your body in response to certain foods you ate, or you can consume them directly, if you eat animal products that contained them (because we’re not special and other animals glycate too, especially mammals such as pigs, cows, and sheep).
As a double-whammy, if you cook animal products (especially without water, such as by roasting or frying), extra AGEs will form during cooking.
When proteinous and/or fatty food turns yellow/golden/brown during cooking, that’s generally glycation.
If there’s starch present, some or all of that yellow/golden/brown stuff will be a Maillard Reaction Product (MRP), such as acrylamide. That’s not exactly a health food, but it’s nowhere near being even in the same ballpark of badness.
In short, during cooking:
- Proteinous/fatty food turns yellow/golden/brown = probably an AGE
- Starchy food turns yellow/golden/brown = probably a MRP
The AGEs are far worse.
What’s so bad about AGEs?
Let’s do a quick tour of some studies:
- The role of advanced glycation end-products in retinal ageing and disease
- Advanced glycation end-products and their circulating receptors predict cardiovascular disease mortality in older women
- Elevated serum advanced glycation end-products in obese indicate risk for the metabolic syndrome: a link between healthy and unhealthy obesity?
- Increased levels of serum advanced glycation end-products in women with polycystic ovary syndrome
- Advanced glycation end-products and their involvement in liver disease
- Effects of advanced glycation end-products on renal fibrosis and oxidative stress
- Role of advanced glycation end-products and oxidative stress in vascular complications in diabetes
- Cancer malignancy is enhanced by advanced glycation end-products
- Advanced glycation end-products in the pathogenesis of Alzheimer’s disease
We could keep going, but you probably get the picture!
What should we do about it?
There are three main ways to reduce serum AGE levels:
Reduce or eliminate consumption of animal products
Especially mammalian animal products, such as from pigs, cows, and sheep, especially their meat. Processed versions are even worse! So, steak is bad, but bacon and sausages are literally top-tier bad.
Cook wet
Dry cooking (which includes frying, and especially includes deep fat frying, which is worse than shallow frying which is worse than air frying) produces far more AGEs than cooking with methods that involve water (boiling, steaming, slow-cooking, etc).
As a bonus, adding acidic ingredients (e.g. vinegar, lemon juice, tomato juice) can halve the amount of AGEs produced.
Consume antioxidants
Our body does have some ability to deal with AGEs, but that ability has its limits, and our body can be easily overwhelmed if we consume foods that are bad for it. So hopefully you’ll tend towards a plant-based diet, but whether you do or don’t:
You can give your body a hand by consuming antioxidant foods and drinks (such as berries, tea/coffee, and chocolate), and/or taking supplements.
Want to know more about the science of this?
Check out…
Advanced Glycation End-Products in Foods and a Practical Guide to Their Reduction in the Diet
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The Web That Has No Weaver – by Ted Kaptchuk
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At 10almonds we have a strong “stick with the science” policy, and that means peer-reviewed studies and (where such exists) scientific consensus.
However, in the spirit of open-minded skepticism (i.e., acknowledging what we don’t necessarily know), it can be worth looking at alternatives to popular Western medicine. Indeed, many things have made their way from Traditional Chinese Medicine (or Ayurveda, or other systems) into Western medicine in any case.
“The Web That Has No Weaver” sounds like quite a mystical title, but the content is presented in the cold light of day, with constant “in Western terms, this works by…” notes.
The author walks a fine line of on the one hand, looking at where TCM and Western medicine may start and end up at the same place, by a different route; and on the other hand, noting that (in a very Daoist fashion), the route is where TCM places more of the focus, in contrast to Western medicine’s focus on the start and end.
He makes the case for TCM being more holistic, and it is, though Western medicine has been catching up in this regard since this book’s publication more than 20 years ago.
The style of the writing is very easy to follow, and is not esoteric in either mysticism or scientific jargon. There are diagrams and other illustrations, for ease of comprehension, and chapter endnotes make sure we didn’t miss important things.
Bottom line: if you’re curious about Traditional Chinese Medicine, this book is the US’s most popular introduction to such, and as such, is quite a seminal text.
Click here to check out The Web That Has No Weaver, and enjoy learning about something new!
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Weight Vests Against Osteoporosis: Do They Really Build Bone?
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Dr. Doug Lucas is a dual board-certified physician specializing in optimizing healthspan and bone health for women experiencing osteoporosis, perimenopause, and menopause. Here, he talks weight vests:
Worth the weight?
Dr. Lucas cites “Wolf’s Law”—bones respond to stress. A weighted vest adds stress, to help build bone density. That said, they may not be suitable for everyone (for example, in cases of severe osteoporosis or a recent vertebral fracture).
He also cites some studies:
- Erlanger Fitness Study (2004): participants with a weighted vest maintained or improved bone density compared to a control group, but there was no group with exercise alone, making it unclear if the vest itself had the biggest impact.
- Newer studies (2016, 2017): showed improved outcomes for groups wearing a weighted vest, but again lacked an exercise-only group for comparison.
- 2012 study: included three groups (control, weighted vest, exercise only). Results showed no significant bone density difference between vest and exercise-only groups, though the vest group showed better balance and motor control.
Dr. Lucas concludes that weighted vests are a useful tool while nevertheless not being a magic bullet for bone health. In other words, they can complement exercise but you will also be fine without. If you do choose to level-up your exercise by using a weight vest, then starting with 5–10% of body weight in a vest is often recommended, but it depends on individual circumstances. If in doubt, start low and build up. Wearing the vest for daily activities can be effective, but improper use (awkward positions or improper impact training) can increase injury risk, so do be careful with that.
For more on all of this, enjoy:
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Want to learn more?
You might also like to read:
- Osteoporosis & Exercises: Which To Do (And Which To Avoid)
- One More Resource Against Osteoporosis!
- The Osteoporosis Breakthrough – by Dr. Doug Lucas ← we reviewed his book a while back!
Take care!
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Built from Broken – by Scott Hogan, CPT, COES
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So many exercise programs come with the caveat “consult your doctor before engaging in any new activity”, and the safe-but-simple “do not try to train through an injury”.
Which is all very well and good for someone in fabulous health who sprained an ankle while running and can just wait a bit, but what about those of us carrying…
- long-term injuries
- recurring injuries
- or just plain unfixable physical disabilities?
That’s where physiotherapist Scott Hogan comes in. The subtitle line goes:
❝A Science-Based Guide to Healing Painful Joints, Preventing Injuries, and Rebuilding Your Body❞
…but he does also recognize that there are some things that won’t bounce back.
On the other hand… There are a lot of things that get written off by doctors as “here’s some ibuprofen” that, with consistent mindful training, could actually be fixed.
Hogan delivers again and again in this latter category! You’ll see on Amazon that the book has thousands of 4- and 5-star ratings and many glowing reviews, and it’s for a reason or three:
- The book first lays a foundational knowledge of the most common injuries likely to impede us from training
- It goes on to give step-by-step corrective exercises to guide your body through healing itself. Your body is trying to heal itself anyway; you might as well help it accomplish that!
- It finishes up with a comprehensive (and essential) guide to train for the strength and mobility that will help you avoid future problems.
In short: a potentially life-changing book if you have some (likely back- or joint-related) problem that needs overcoming!
And if you don’t? An excellent pre-emptive guide all the same. This is definitely one of those “an ounce of prevention is better than a pound of cure” things.
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Are Electrolyte Supplements Worth It?
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When To Take Electrolytes (And When We Shouldn’t!)
Any sports nutrition outlet will sell electrolyte supplements. Sometimes in the form of sports drinks that claim to be more hydrating than water, or tablets that can be dissolved in water to make the same. How do they work, and should we be drinking them?
What are electrolytes?
They’re called “electrolytes” because they are ionized particles (so, they have a positive or negative electrical charge, depending on which kind of ion they are) that are usually combined in the form of salts.
The “first halves” of the salts include:
- Sodium
- Potassium
- Calcium
- Magnesium
The “second halves” of the salts include:
- Chloride
- Phosphate
- Bicarbonate
- Nitrate
It doesn’t matter too much which way they’re combined, provided we get what we need. Specifically, the body needs them in a careful balance. Too much or too little, and bad things will start happening to us.
If we live in a temperate climate with a moderate lifestyle and a balanced diet, and have healthy working kidneys, usually our kidneys will keep them all in balance.
Why might we need to supplement?
Firstly, of course, you might have a dietary deficiency. Magnesium deficiency in particular is very common in North America, as people simply do not eat as much greenery as they ideally would.
But, also, you might sweat out your electrolytes, in which case, you will need to replace them.
In particular, endurance training and High Intensity Interval Training are likely to prompt this.
However… Are you in a rush? Because if not, you might just want to recover more slowly:
❝Vigorous exercise and warm/hot temperatures induce sweat production, which loses both water and electrolytes. Both water and sodium need to be replaced to re-establish “normal” total body water (euhydration).
This replacement can be by normal eating and drinking practices if there is no urgency for recovery.
But if rapid recovery (<24 h) is desired or severe hypohydration (>5% body mass) is encountered, aggressive drinking of fluids and consuming electrolytes should be encouraged to facilitate recovery❞
Source: Fluid and electrolyte needs for training, competition, and recovery
Should we just supplement anyway, as a “catch-all” to be sure?
Probably not. In particular, it is easy to get too much sodium in one’s diet, let alone by supplementation.And, oversupplementation of calcium is very common, and causes its own health problems. See:
To look directly to the science on this one, we see a general consensus amongst research reviews: “this is complicated and can go either way depending on what else people are doing”:
- Trace minerals intake: risks and benefits for cardiovascular health
- Electrolyte minerals intake and cardiovascular health
Well, that’s not helpful. Any clearer pointers?
Yes! Researchers Latzka and Mountain put together a very practical list of tips. Rather, they didn’t put it as a list, but the following bullet points are information extracted directly from their abstract, though we’ve also linked the full article below:
- It is recommended that individuals begin exercise when adequately hydrated.
- This can be facilitated by drinking 400 mL to 600 mL of fluid 2 hours before beginning exercise and drinking sufficient fluid during exercise to prevent dehydration from exceeding 2% body weight.
- A practical recommendation is to drink small amounts of fluid (150-300 mL) every 15 to 20 minutes of exercise, varying the volume depending on sweating rate.
- During exercise lasting less than 90 minutes, water alone is sufficient for fluid replacement
- During prolonged exercise lasting longer than 90 minutes, commercially available carbohydrate electrolyte beverages should be considered to provide an exogenous carbohydrate source to sustain carbohydrate oxidation and endurance performance.
- Electrolyte supplementation is generally not necessary because dietary intake is adequate to offset electrolytes lost in sweat and urine; however, during initial days of hot-weather training or when meals are not calorically adequate, supplemental salt intake may be indicated to sustain sodium balance.
Source: Water and electrolyte requirements for exercise
Bonus tip:
We’ve talked before about the specific age-related benefits of creatine supplementation, but if you’re doing endurance training or HIIT, you might also want to consider a creatine-electrolyte combination sports drink (even if you make it yourself):
Where can I get electrolyte supplements?
They’re easy to find in any sports nutrition store, or you can buy them online; here’s an example product on Amazon for your convenience
You can also opt for natural and/or homemade electrolyte drinks:
Healthline | 8 Healthy Drinks Rich in Electrolytes
Enjoy!
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Good news: midlife health is about more than a waist measurement. Here’s why
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You’re not in your 20s or 30s anymore and you know regular health checks are important. So you go to your GP. During the appointment they measure your waist. They might also check your weight. Looking concerned, they recommend some lifestyle changes.
GPs and health professionals commonly measure waist circumference as a vital sign for health. This is a better indicator than body mass index (BMI) of the amount of intra-abdominal fat. This is the really risky fat around and within the organs that can drive heart disease and metabolic disorders such as type 2 diabetes.
Men are at greatly increased risk of health issues if their waist circumference is greater than 102 centimetres. Women are considered to be at greater risk with a waist circumference of 88 centimetres or more. More than two-thirds of Australian adults have waist measurements that put them at an increased risk of disease. An even better indicator is waist circumference divided by height or waist-to-height ratio.
But we know people (especially women) have a propensity to gain weight around their middle during midlife, which can be very hard to control. Are they doomed to ill health? It turns out that, although such measurements are important, they are not the whole story when it comes to your risk of disease and death.
How much is too much?
Having a waist circumference to height ratio larger than 0.5 is associated with greater risk of chronic disease as well as premature death and this applies in adults of any age. A healthy waist-to-height ratio is between 0.4 to 0.49. A ratio of 0.6 or more places a person at the highest risk of disease.
Some experts recommend waist circumference be routinely measured in patients during health appointments. This can kick off a discussion about their risk of chronic diseases and how they might address this.
Excessive body fat and the associated health problems manifest more strongly during midlife. A range of social, personal and physiological factors come together to make it more difficult to control waist circumference as we age. Metabolism tends to slow down mainly due to decreasing muscle mass because people do less vigorous physical activity, in particular resistance exercise.
For women, hormone levels begin changing in mid-life and this also stimulates increased fat levels particularly around the abdomen. At the same time, this life phase (often involving job responsibilities, parenting and caring for ageing parents) is when elevated stress can lead to increased cortisol which causes fat gain in the abdominal region.
Midlife can also bring poorer sleep patterns. These contribute to fat gain with disruption to the hormones that control appetite.
Finally, your family history and genetics can make you predisposed to gaining more abdominal fat.
Why the waist?
This intra-abdominal or visceral fat is much more metabolically active (it has a greater impact on body organs and systems) than the fat under the skin (subcutaneous fat).
Visceral fat surrounds and infiltrates major organs such as the liver, pancreas and intestines, releasing a variety of chemicals (hormones, inflammatory signals, and fatty acids). These affect inflammation, lipid metabolism, cholesterol levels and insulin resistance, contributing to the development of chronic illnesses.
Exercise can limit visceral fat gains in mid-life. Shutterstock/Zamrznuti tonovi The issue is particularly evident during menopause. In addition to the direct effects of hormone changes, declining levels of oestrogen change brain function, mood and motivation. These psychological alterations can result in reduced physical activity and increased eating – often of comfort foods high in sugar and fat.
But these outcomes are not inevitable. Diet, exercise and managing mental health can limit visceral fat gains in mid-life. And importantly, the waist circumference (and ratio to height) is just one measure of human health. There are so many other aspects of body composition, exercise and diet. These can have much larger influence on a person’s health.
Muscle matters
The quantity and quality of skeletal muscle (attached to bones to produce movement) a person has makes a big difference to their heart, lung, metabolic, immune, neurological and mental health as well as their physical function.
On current evidence, it is equally or more important for health and longevity to have higher muscle mass and better cardiorespiratory (aerobic) fitness than waist circumference within the healthy range.
So, if a person does have an excessive waist circumference, but they are also sedentary and have less muscle mass and aerobic fitness, then the recommendation would be to focus on an appropriate exercise program. The fitness deficits should be addressed as priority rather than worry about fat loss.
Conversely, a person with low visceral fat levels is not necessarily fit and healthy and may have quite poor aerobic fitness, muscle mass, and strength. The research evidence is that these vital signs of health – how strong a person is, the quality of their diet and how well their heart, circulation and lungs are working – are more predictive of risk of disease and death than how thin or fat a person is.
For example, a 2017 Dutch study followed overweight and obese people for 15 years and found people who were very physically active had no increased heart disease risk than “normal weight” participants.
Getting moving is important advice
Physical activity has many benefits. Exercise can counter a lot of the negative behavioural and physiological changes that are occurring during midlife including for people going through menopause.
And regular exercise reduces the tendency to use food and drink to help manage what can be a quite difficult time in life.
Measuring your waist circumference and monitoring your weight remains important. If the measures exceed the values listed above, then it is certainly a good idea to make some changes. Exercise is effective for fat loss and in particular decreasing visceral fat with greater effectiveness when combined with dietary restriction of energy intake. Importantly, any fat loss program – whether through drugs, diet or surgery – is also a muscle loss program unless resistance exercise is part of the program. Talking about your overall health with a doctor is a great place to start.
Accredited exercise physiologists and accredited practising dietitians are the most appropriate allied health professionals to assess your physical structure, fitness and diet and work with you to get a plan in place to improve your health, fitness and reduce your current and future health risks.
Rob Newton, Professor of Exercise Medicine, Edith Cowan University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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