Coffee, From A Blood Sugar Management Perspective
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Our favorite French biochemist (Jessie Inchauspé) is back, and this time, she’s tackling a topic near and dear to this writer’s heart: coffee ☕💕
What to consider
Depending on how you like your coffee, some or all of these may apply to you:
- Is coffee healthy? Coffee is generally healthy, reducing the risk of type 2 diabetes by improving fat burning in the liver and protecting beta cells in the pancreas.
- Does it spike blood sugars? Usually not so long as it’s black and unsweetened. Black coffee can cause small glucose spikes in some people due to stress-induced glucose release, but only if it contains caffeine.
- When is it best to drink it? Drinking coffee after breakfast, especially after a poor night’s sleep, can actually reduce glucose and insulin spikes.
- What about milk? All milks cause some glucose and insulin spikes. While oat milk is generally healthy, for blood sugar purposes unsweetened nut milks or even whole cow’s milk (but not skimmed; it needs the fat) are better options as they cause smaller spikes.
- What about sweetening? Adding sugar to coffee, especially on an empty stomach, obviously leads to large glucose spikes. Alternative sweeteners like stevia or sweet cinnamon are fine substitutes.
For more details on all of those things, plus why Kenyan coffee specifically may be the best for blood sugars, enjoy:
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Want to learn more?
You might also like to read:
- The Bitter Truth About Coffee (or is it?)
- Caffeine: Cognitive Enhancer Or Brain-Wrecker?
- 10 Ways To Balance Blood Sugars
Take care!
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Burn – by Dr. Herman Pontzer
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We all have reasons to want to focus on our metabolism. Speed it up to burn more fat; slow it down to live longer. Tweak it for more energy in the day. But what actually is it, and how does it work?
Dr. Herman Pontzer presents a very useful overview of not just what our metabolism is and how it works, but also why.
The style of the book is casual, but doesn’t skimp on the science. Whether we are getting campfire stories of Hadza hunter-gatherers, or an explanation of the use of hydrogen isotopes in metabolic research, Dr. Pontzer keeps things easy-reading.
One of the main premises of the book is that our caloric expenditure is not easy to change—if we exercise more, our bodies will cut back somewhere else. After all, the body uses energy for a lot more than just moving. With this in mind, Dr. Pontzer makes the science-based case for focusing more on diet than exercise if weight management is our goal.
In short, if you’d like your metabolism to be a lot less mysterious, this book can help render a lot of science a lot more comprehensible!
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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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Wanna read more?
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You’ve Got Questions? We’ve Got Answers!
Q: Tips for reading more and managing time for it?
A: We talked about this a little bit in yesterday’s edition, so you may have seen that, but aside from that:
- If you don’t already have one, consider getting a Kindle or similar e-reader. They’re very convenient, and also very light and ergonomic—no more wrist strain as can occur with physical books. No more eye-strain, either!
- Consider making reading a specific part of your daily routine. A chapter before bed can be a nice wind-down, for instance! What’s important is it’s a part of your day that’ll always, or at least almost always, allow you to do a little reading.
- If you drive, walk, run, or similar each day, a lot of people find that’s a great time to listen to an audiobook. Please be safe, though!
- If your lifestyle permits such, a “reading retreat” can be a wonderful vacation! Even if you only “retreat” to your bedroom, the point is that it’s a weekend (or more!) that you block off from all other commitments, and curl up with the book(s) of your choice.
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Why Your Brain Blinds You For 2 Hours Every Day
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…and then covers its tracks so that you don’t notice:
Now you see it…
The world you experience is not an accurate representation of reality. Your brain actively constructs your perception, editing your memories as they happen and manipulating your sense of time. What you perceive as the present moment is actually a processed and reconstructed version of past events.
Nor is your vision anywhere near as detailed as it seems. Only a small central portion is in high resolution, while the rest is blurry. Your brain compensates for this by filling in the gaps with its best guess and/or what it believes is there from the last time you saw it. Your eyes constantly make rapid movements called saccades, and during these (i.e. when your eyes are moving), your vision momentarily shuts down—making you effectively blind for (in total, if we add them all up) about two hours every day (according to this video, anyway; our calculations find it to be more than that, but you get the idea). Your brain stitches together the visual input, creating a seamless experience that feels continuous (much like an animation reel composed of still images).
Why does it do this?
It’s because your senses operate at different speeds—light reaches your eyes in nanoseconds, sound in milliseconds, and touch signals in tens of milliseconds. However, your brain processes these inputs together, creating the illusion of a smooth and simultaneous experience. In reality, what you perceive as the present is actually a delayed and selectively edited version of the past.
Instead of showing you the world as it is, your brain predicts what will happen next. In high-speed situations, such as playing table tennis, if your brain relied on past sensory data, you wouldn’t react in time. Instead, it estimates an object’s future position and presents that prediction as your visual reality.
This also means that because your brain effectively sees things slightly sooner than you do, your brain has already prepared multiple possible responses and when an event occurs, it quickly selects the most likely course of action, deleting the alternatives before you are even aware of them. By the time you think you’ve made a decision, your body has already acted.
This goes for more than just the things we think of as requiring quick reactions!
Walking is a complex task that involves multiple time layers—your brain processes past feedback, assesses your current state, and predicts future movements. That’s why it was something that cyberneticists found difficult to recreate for a very long time. If something unexpected happens, like slipping cartoon-style on a banana peel, your body reacts before you consciously notice the danger. Your spinal cord and brainstem trigger emergency reflexes to stabilize you before your conscious mind even catches up.
For more on all of this, enjoy:
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Want to learn more?
You might also like:
This Main Feature Should Take You Two Minutes (and 18 Seconds) To Read ← There’s a problem nobody wants to talk about when it comes to speed-reading; can you guess what it is based on what we just talked about above?
Take care!
Don’t Forget…
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Artichoke vs Brussels Sprouts – Which is Healthier?
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Our Verdict
When comparing artichoke to Brussels sprouts, we picked the sprouts.
Why?
Finally, a vegetable that beats artichoke—after it previously beat heart-of-palm, asparagus, and even cabbage! It was still close though, which is impressive for artichoke, considering what a nutritional powerhouse Brussels sprouts are:
In terms of macros, the only meaningful difference is that artichoke has slightly more carbs and fiber, so artichoke gets the most marginal of nominal wins in this category.
In the category of vitamins, however, artichoke has more of vitamins B3, B9, and choline, while Brussels sprouts have more of vitamins A, B1, B2, B6, C, E, and K, giving sprouts the clear victory here, especially with much higher margins of difference (e.g. 58x more vitamin A, as well as 7x more vitamin C, and 10x more vitamin K).
When it comes to minerals, artichoke has more copper, magnesium, phosphorus, and zinc, while Brussels sprouts have more iron, manganese, potassium, and selenium, resulting in a 4:4 tie, and the small margins of difference are mostly comparable, with the exception that sprouts have 8x more selenium. So, Brussels sprouts win this category very marginally on that tie-breaker.
Adding up the sections we see that macros and minerals gave a small win each to artichoke and sprouts respectively, while the vitamins category was an overwhelming win for sprouts, so—with this deciding factor in mind—sprouts win the day today.
Want to learn more?
You might like to read:
Sprout Your Seeds, Grains, Beans, Etc
Enjoy!
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Solitary Fitness – by Charles Bronson
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Sometimes it can seem that every new diet and/or exercise regime you want to try will change your life, if just you first max out your credit card on restocking your kitchen and refurbishing your home gym, not to mention buying all the best supplements, enjoying the latest medical gadgets, and so on and so forth.
And often… Most of those things genuinely are good! And it’s great that such things are becoming more accessible and available.
But… Wouldn’t it be nice to know how to have excellent strength and fitness without any of that, even if just as a “bare bones” protocol to fall back on? That’s what Manson provides in this book.
The writing style is casual and friendly; Manson is not exactly an academic, but he knows his stuff when it comes to what works. And a good general rule of thumb is: if it’s something that he can do in his jail cell, we can surely do it in the comfort of our homes.
Bottom line: if you want functional strength and fitness with zero gimmicks, this is the book for you (as an aside, it’s also simply an interesting and recommendable read, sociologically speaking, but that’s another matter entirely).
Don’t Forget…
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