Endure – by Alex Hutchinson
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Life is a marathon, not a sprint. For most of us, at least. But how do we pace ourselves to go the distance, without falling into complacency along the way?
According to our author Alex Hutchinson, there’s a lot more to it than goal-setting and strategy.
Hutchinson set out to write a running manual, and ended up writing a manual for life. To be clear, this is still mostly centered around the science of athletic endurance, but covers the psychological factors as much as the physical… and notes how the capacity to endure is the key trait that underlies great performance in every field.
The writing style is both personal and personable, and parts read like a memoir (Hutchinson himself being a runner and sports journalist), while others are scientific in nature.
As for the science, the kind of science examined runs the gamut from case studies to clinical studies. We examine not just the science of physical endurance, but the science of psychological endurance too. We learn about such things as:
- How perception of ease/difficulty plays its part
- What factors make a difference to pain tolerance
- How mental exhaustion affects physical performance
- What environmental factors increase or lessen our endurance
- …and many other elements that most people don’t consider
Bottom line: whether you want to run a marathon in under two hours, or just not quit after one minute forty seconds on the exercise bike, or to get through a full day’s activities while managing chronic pain, this book can help.
Click here to check out Endure, and find out what you are capable of when you move your limits!
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Exercising With Less Soreness!
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An Ancient Sports Drink & Healing Potion, Now With Modern Science?
Ginseng has many health benefits, we talked about 8 of them in this previous edition of 10almonds:
…but we’ve somehow never yet done a Monday’s Research Review for it! We must do one, one of these days. For now though, it’s Saturday’s Life Hacks, and we’re here with…
Speeding up recovery after muscle damage
We talked about this topic before too:
Overdone It? How To Speed Up Recovery After Exercise
…which gives very good advice (including some supplements that help), but was published before the latest science that we’re going to talk about today:
A team of researchers all so very recently found that ginseng also reduces muscular fatigue and, importantly, hastens recovery of muscle damage caused by exercise.
And that’s not all…
❝It should also be noted that, by reducing fatigue, taking ginseng on a regular basis may also help reduce the risk of injury, particularly in the case of muscles or ligaments, which can in turn improve athletic performance.❞
This means that it can be taken regularly and prophylactically, as they found:
❝taking ginseng systematically for a long time can mitigate the response of the biological markers, mainly creatine kinase (CK) and interleukin 6 (IL-6), responsible for exercise-induced muscle damage and inflammation.❞
You may be thinking “isn’t creatine good?” and yes, yes it is:
Creatine: Very Different For Young & Old People
…however, creatine kinase is not creatine. Creatine kinase (CK) is an enzyme that affects the creatine (to put it in few words, without getting into the fascinating biochemistry of this). Now, it’s necessary for us to have some CK (or else we wouldn’t be able to do what we need to with the creatine), but elevated levels often indicate some sort of problem going on:
Approach to asymptomatic creatine kinase elevation
…so ginseng keeping those things balanced is a good thing.
The study
We’ve talked a lot about the findings and what they mean, but if you’d like to read the paper for yourself, you can read it here:
Effect of Ginseng Intake on Muscle Damage Induced by Exercise in Healthy Adults
Where to get ginseng
If you’d like to take ginseng as a supplement, then there are many ways to do so, with the most common being capsules or ginseng tea, which has an interesting and distinctive taste, and is very refreshing. Here are examples on Amazon, for your convenience:
Enjoy!
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What Loneliness Does To Your Brain And Body
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Spoiler: it’s nothing good (but it can be addressed!)
Not something to be ignored
Loneliness raises the risk of heart disease by 29% and the risk of stroke by 32%. It also brings about higher susceptibility to illness (flu, COVID, chronic pain, etc), as well as poor sleep quality and cognitive decline, possibly leading to dementia. Not only that, but it also promotes inflammation, and premature death (comparable to smoking).
This is because the lack of meaningful social connections activates the body’s stress response, which in turn increases paranoia, suspicion, and social withdrawal—which makes it harder to seek the social interaction needed to alleviate it.
On a neurological level, cortisol levels become imbalanced, and a faltering dopamine response leads to impulsive behaviors (e.g., drinking, gambling) to try to make up for it. Decreased serotonin, oxytocin, and natural opioids reduce feelings of happiness and negate pain relief.
As for combatting it, the first-line remedy is the obvious one: connecting with others improves emotional and physical wellbeing. However, it is recommended to aim for deep, meaningful connections that make you happy rather than just socializing for its own sake. It’s perfectly possible to be lonely in a crowd, after all.
A second-line remedy is to simply mitigate the harm by means of such things as art therapy and time in nature—they can’t completely replace human connection, but they can at least improve the neurophysiological situation (which in turn, might be enough of a stop-gap solution to enable a return to human connection).
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:
How To Beat Loneliness & Isolation
Take care!
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Caesar Salad, Anyone? (Ides of March Edition!)
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The Mediterranean Diet: What Is It Good For?
More to the point: what isn’t it good for?
- It’s been found to reduce all-cause mortality, which is about the best thing one can say of any diet.
- It’s especially good for heart health and against cancer.
- It’s particularly recommended for the prevention or management of diabetes.
- It’s also been found, societally, to reduce general healthcare costs—basically, people get sick less and so have fewer healthcare costs.
What brought it to the attention of the world’s scientific community?
Back in the 1950s, physiologist Ancel Keys wondered why poor people in Italian villages were healthier than wealthy New Yorkers. Upon undertaking studies, he narrowed it down to the Mediterranean diet—something he’d then take on as a public health cause for the rest of his career.
Keys himself lived to the ripe old age of 100, by the way.
When we say “Mediterranean Diet”, what image comes to mind?
We’re willing to bet that tomatoes feature (great source of lycopene, by the way), but what else?
- Salads, perhaps? Vegetables, olives? Olive oil, yea or nay?
- Bread? Pasta? Prosciutto, salami? Cheese?
- Pizza but only if it’s Romana style, not Chicago?
- Pan-seared liver, with some fava beans and a nice Chianti?
In reality, the diet is based on what was historically eaten specifically by Italian peasants. If the word “peasants” conjures an image of medieval paupers in smocks and cowls, and that’s not necessarily wrong, further back historically… but the relevant part here is that they were people who lived and worked in the countryside.
They didn’t have money for meat, which was expensive, nor the industrial setting for refined grain products to be affordable. They didn’t have big monocrops either, which meant no canola oil, for example… Olives produce much more easily extractable oil per plant, so olive oil was easier to get. Nor, of course, did they have the money (or infrastructure) for much in the way of imports.
So what foods are part of “the” Mediterranean Diet?
- Fruits. These would be fruits grown locally, but no need to sweat that, dietwise. It’s hard to go wrong with fruit.
- Tomatoes yes. So many tomatoes. (Knowledge is knowing tomato is a fruit. Wisdom is not putting it in a fruit salad)
- Non-starchy vegetables (e.g. eggplant yes, potatoes no)
- Greens (spinach, kale, lettuce, all those sorts of things)
- Beans and other legumes (whatever was grown nearby)
- Whole grain products in moderation (wholegrain bread, wholewheat pasta)
- Olives and olive oil. Special category, single largest source of fat in the Mediterranean diet, but don’t overdo it.
- Dairy products in moderation (usually hard cheeses, as these keep well)
- Fish, in moderation. Typically grilled, baked, steamed even. Not fried.
- Other meats as a rarer luxury in considerable moderation. There’s more than one reason prosciutto is so thinly sliced!
Want to super-power this already super diet?
Try: A Pesco-Mediterranean Diet With Intermittent Fasting: JACC Review Topic of the Week
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Ketogenic Diet: Burning Fat Or Burning Out?
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In Wednesday’s newsletter, we asked you for your opinion of the keto diet, and got the above-depicted, below-described set of responses:
- About 45% said “It has its benefits, but they don’t outweigh the risks”
- About 31% said “It is a good, evidence-based way to lose weight, be energized, and live healthily”
- About 24% said “It is a woeful fad diet and a fast-track to ruining one’s overall health”
So what does the science say?
First, what is the ketogenic diet?
There are two different stories here:
- Per science, it’s a medical diet designed to help treat refractory epilepsy in children.
- Per popular lore, it’s an energizing weight loss diet for Instagrammers and YouTubers.
Can it be both? The answer is: yes, but with some serious caveats, which we’ll cover over the course of today’s feature.
The ketogenic diet works by forcing the body to burn fat for energy: True or False?
True! This is why it helps for children with refractory epilepsy. By starving the body (including the brain) of glucose, the liver must convert fat into fatty acids and ketones, which latter the brain (and indeed the rest of the body) can now use for energy instead of glucose, thus avoiding one of the the main triggers of refractory epilepsy in children.
See: The Ketogenic Diet: One Decade Later | Pediatrics
Even the pediatric epilepsy studies, however, conclude it does have unwanted side effects, such as kidney stones, constipation, high cholesterol, and acidosis:
Source: Dietary Therapies for Epilepsy
The ketogenic diet is good for weight loss: True or False?
True! Insofar as it does cause weight loss, often rapidly. Of course, so do diarrhea and vomiting, but these are not usually held to be healthy methods of weight loss. As for keto, a team of researchers recently concluded:
❝As obesity rates in the populace keep rising, dietary fads such as the ketogenic diet are gaining traction.
Although they could help with weight loss, this study had a notable observation of severe hypercholesterolemia and increased risk of atherosclerotic cardiovascular disease among the ketogenic diet participants.❞
~ Dr. Shadan Khdher et al.
On which note…
The ketogenic diet is bad for the heart: True or False?
True! As Dr. Joanna Popiolek-Kalisz concluded recently:
❝In terms of cardiovascular mortality, the low-carb pattern is more beneficial than very low-carbohydrate (including the ketogenic diet). There is still scarce evidence comparing ketogenic to the Mediterranean diet.
Other safety concerns in cardiovascular patients such as adverse events related to ketosis, fat-free mass loss, or potential pharmacological interactions should be also taken into consideration in future research.❞
~ Dr. Joanna Popiolek-Kalisz
Read in full: Ketogenic diet and cardiovascular risk: state of the art review
The ketogenic diet is good for short-term weight loss, but not long-term maintenance: True or False?
True! Again, insofar as it works in the short term. It’s not the healthiest way to lose weight and we don’t recommend it, but it did does indeed precipitate short-term weight loss. Those benefits are not typically observed for longer than a short time, though, as the above-linked paper mentions:
❝The ketogenic diet does not fulfill the criteria of a healthy diet. It presents the potential for rapid short-term reduction of body mass, triglycerides level, Hb1Ac, and blood pressure.
Its efficacy for weight loss and the above-mentioned metabolic changes is not significant in long-term observations.❞
~ Ibid.
The ketogenic diet is a good, evidence-based way to lose weight, be energized, and live healthily: True or False?
False, simply, as you may have gathered from the above, but we’ve barely scratched the surface in terms of the risks.
That said, as mentioned, it will induce short-term weight loss, and as for being energized, typically there is a slump-spike-slump in energy:
- At first, the body is running out of glucose, and so naturally feels weak and tired.
- Next, the body enters ketosis, and so feels energized and enlivened ← this is the part where the popular enthusiastic reviews come from
- Then, the body starts experiencing all the longer-term problems associated with lacking carbohydrates and having an overabundance of fat, so becomes gradually more sick and tired.
Because of this, the signs of symptoms of being in ketosis (aside from: measurably increased ketones in blood, breath, and urine) are listed as:
- Bad breath
- Weight loss
- Appetite loss
- Increased focus and energy
- Increased fatigue and irritability
- Digestive issues
- Insomnia
The slump-spike-slump we mentioned is the reason for the seemingly contradictory symptoms of increased energy and increased fatigue—you get one and then the other.
Here’s a small but illustrative study, made clearer by its participants being a demographic whose energy levels are most strongly affected by dietary factors:
The ketogenic diet is a woeful fad diet and a fast-track to ruining one’s overall health: True or False?
True, subjectively in the first part, as it’s a little harsher than we usually go for in tone, though it has been called a fad diet in scientific literature. The latter part (ruining one’s overall health) is observably true.
One major problem is incidental-but-serious, which is that a low-carb diet is typically a de facto low-fiber diet, which is naturally bad for the gut and heart.
Other things are more specific to the keto diet, such as the problems with the kidneys:
However, kidney stones aren’t the worst of the problems:
Is Losing Weight Worth Losing Your Kidney: Keto Diet Resulting in Renal Failure
We’re running out of space and the risks associated with the keto diet are many, but for example even in the short term, it already increases osteoporosis risk:
❝Markers of bone modeling/remodeling were impaired after short-term low-carbohydrate high-fat diet, and only one marker of resorption recovered after acute carbohydrate restoration❞
~ Dr. Ida Heikura et al.
A Short-Term Ketogenic Diet Impairs Markers of Bone Health in Response to Exercise
Want a healthier diet?
We recommend the Mediterranean diet.
See also: Four Ways To Upgrade The Mediterranean
(the above is about keeping to the Mediterranean diet, while tweaking one’s choices within it for a specific extra health focus such as an anti-inflammatory upgrade, a heart-healthy upgrade, a gut-healthy upgrade, and a brain-healthy upgrade)
Enjoy!
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No Time to Panic – by Matt Gutman
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Matt Gutman is not a doctor or a psychologist. He’s a journalist, accustomed to asking questions and then asking more probing questions, unrelenting until he gets the answers he’s looking for.
This book is the result of what happened when he needed to overcome his own anxiety and panic attacks, and went on an incisive investigative journey.
The style is as clear and accessible as you’d expect of a journalist, and presents a very human exploration, nonetheless organized in a way that will be useful to the reader.
It’s said that “experience is a great teacher, but she sends hefty bills”. In this case as in many, it’s good to learn from someone else’s experience!
By the end of the book, you’ll have a good grounding in most approaches to dealing with anxiety and panic attacks, and an idea of efficacy/applicability, and what to expect.
Bottom line: without claiming any magic bullet, this book presents six key strategies that Gutman found to work, along with his experiences of what didn’t. Valuable reading if you want to curb your own anxiety, or want to be able to help/support someone else with theirs.
Click here to check out No Time To Panic, and find the peace you deserve!
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The voice in your head may help you recall and process words. But what if you don’t have one?
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Can you imagine hearing yourself speak? A voice inside your head – perhaps reciting a shopping list or a phone number? What would life be like if you couldn’t?
Some people, including me, cannot have imagined visual experiences. We cannot close our eyes and conjure an experience of seeing a loved one’s face, or imagine our lounge room layout – to consider if a new piece of furniture might fit in it. This is called “aphantasia”, from a Greek phrase where the “a” means without, and “phantasia” refers to an image. Colloquially, people like myself are often referred to as having a “blind mind”.
While most attention has been given to the inability to have imagined visual sensations, aphantasics can lack other imagined experiences. We might be unable to experience imagined tastes or smells. Some people cannot imagine hearing themselves speak.
A recent study has advanced our understanding of people who cannot imagine hearing their own internal monologue. Importantly, the authors have identified some tasks that such people are more likely to find challenging.
fizkes/Shutterstock What the study found
Researchers at the University of Copenhagen in Denmark and at the University of Wisconsin-Madison in the United States recruited 93 volunteers. They included 46 adults who reported low levels of inner speech and 47 who reported high levels.
Both groups were given challenging tasks: judging if the names of objects they had seen would rhyme and recalling words. The group without an inner monologue performed worse. But differences disappeared when everyone could say words aloud.
Importantly, people who reported less inner speech were not worse at all tasks. They could recall similar numbers of words when the words had a different appearance to one another. This negates any suggestion that aphants (people with aphantasia) simply weren’t trying or were less capable.
Hearing our own imagined voice may play an important role in word processing. sutadimages/Shutterstock A welcome validation
The study provides some welcome evidence for the lived experiences of some aphants, who are still often told their experiences are not different, but rather that they cannot describe their imagined experiences. Some people feel anxiety when they realise other people can have imagined experiences that they cannot. These feelings may be deepened when others assert they are merely confused or inarticulate.
In my own aphantasia research I have often quizzed crowds of people on their capacity to have imagined experiences.
Questions about the capacity to have imagined visual or audio sensations tend to be excitedly endorsed by a vast majority, but questions about imagined experiences of taste or smell seem to cause more confusion. Some people are adamant they can do this, including a colleague who says he can imagine what combinations of ingredients will taste like when cooked together. But other responses suggest subtypes of aphantasia may prove to be more common than we realise.
The authors of the recent study suggest the inability to imagine hearing yourself speak should be referred to as “anendophasia”, meaning without inner speech. Other authors had suggested anauralia (meaning without auditory imagery). Still other researchers have referred to all types of imagined sensation as being different types of “imagery”.
Having consistent names is important. It can help scientists “talk” to one another to compare findings. If different authors use different names, important evidence can be missed.
We’re starting to broaden our understanding of the senses and how we imagine them. Napat Chaichanasiri/Shutterstock We have more than 5 senses
Debate continues about how many senses humans have, but some scientists reasonably argue for a number greater than 20.
In addition to the five senses of sight, smell, taste, touch and hearing, lesser known senses include thermoception (our sense of heat) and proprioception (awareness of the positions of our body parts). Thanks to proprioception, most of us can close our eyes and touch the tip of our index finger to our nose. Thanks to our vestibular sense, we typically have a good idea of which way is up and can maintain balance.
It may be tempting to give a new name to each inability to have a given type of imagined sensation. But this could lead to confusion. Another approach would be to adapt phrases that are already widely used. People who are unable to have imagined sensations commonly refer to ourselves as “aphants”. This could be adapted with a prefix, such as “audio aphant”. Time will tell which approach is adopted by most researchers.
Why we should keep investigating
Regardless of the names we use, the study of multiple types of inability to have an imagined sensation is important. These investigations could reveal the essential processes in human brains that bring about a conscious experience of an imagined sensation.
In time, this will not only lead to a better understanding of the diversity of humans, but may help uncover how human brains can create any conscious sensation. This question – how and where our conscious feelings are generated – remains one of the great mysteries of science.
Derek Arnold, Professor, School of Psychology, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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