The SharpBrains Guide to Brain Fitness – by Alvaro Fernandez et al.
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We say “et al.” in the by-line, because this one has a flock of authors, including Dr. Pascale Michelon, Dr. Sandra Bond Chapman, Dr. Elkehon Goldberg, and various others if we include the foreword, introduction, etc.
This is relevant, because those who contributed to the meat of the book (i.e., those listed above), it makes the work a lot more scientifically reliable; one skilled science writer might make a mistake; it’s much less likely to make it through to publication when there are a bevy of doctors in the mix, each staking their reputation on the book’s content, and thus having a vested interest in checking each other’s work as well as their own.
As for what this multidisciplinary team have to offer? The book covers such things as:
- how the brain works (especially the possibilities of neuroplasticity), and what that means for such things as memory and attention
- being “a coach not a patient”; i.e., being active rather than passive in one’s approach to brain health
- the relevance of physical exercise, how much, and what kind
- the relevance (and limitations) of diet choices for brain health
- the relevance of such things as learning new languages and musical training
- the relevance of social engagement, and how some (but not all) social engagement can boost cognition
- methods for managing stress and building resilience to same (critical for maintaining a healthy brain)
- “cross-fit for your brain”, that is to say, a multi-vector collection of tools to explore, ranging from meditation to CBT to biofeedback and more.
The style is pop-science without being sensationalist, just communicating ideas clearly, with enough padding to feel casual, and not like a dense read. Importantly, it’s also practical and applicable too, which is something we always look for here.
Bottom line: if you’d like to be given a good overview of what things work (and how much they can be expected to work), along with a good framework to put that knowledge into practice, then this is a great book for you.
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52 Ways to Walk – by Annabel Streets
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Most of us learned to walk at a very young age and probably haven’t thought much about it since, except perhaps in a case where some injury made it difficult.
Annabel Streets provides a wonderful guide to not just taking up (or perhaps reclaiming) the joy of walking, but also the science of it in more aspects than most of us have considered:
- The physical mechanics of walking—what’s best?
- Boots or shoes? Barefoot?
- Roads, grass, rougher vegetation… Mud?
- Flora & fauna down to the microbiota that affect us
- How much walking is needed, to be healthy?
- Is there such a thing as too much walking?
- What are the health benefits (or risks) of various kinds of weather?
- Is it better to walk quickly or to walk far?
- What about if we’re carrying some injury?
- What’s going on physiologically when we walk?
- And so much more…
Streets writes with a captivating blend of poetic joie-de-vivre coupled with scientific references.
One moment the book is talking about neuroradiology reports of NO-levels in our blood, the impact of Mycobacterium vaccae, and the studied relationship between daily steps taken and production of oligosaccharide 3′-sialyllactose, and the next it’s all:
“As if the newfound lightness in our limbs has crept into our minds, loosening our everyday cares and constraints…”
And all in all, this book helps remind us that sometimes, science and a sense of wonder can and do (and should!) walk hand-in-hand.
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The Plant Power Doctor
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A Prescription For GLOVES
This is Dr. Gemma Newman. She’s a GP (General Practitioner, British equivalent to what is called a family doctor in America), and she realized that she was treating a lot of patients while nobody was actually getting better.
So, she set out to help people actually get better… But how?
The biggest thing
The single biggest thing she recommends is a whole foods plant-based diet, as that’s a starting point for a lot of other things.
Click here for an assortment of short videos by her and other health professionals on this topic!
Specifically, she advocates to “love foods that love you back”, and make critical choices when deciding between ingredients.
Click here to see her recipes and tips (this writer is going to try out some of these!)
What’s this about GLOVES?
We recently reviewed her book “Get Well, Stay Well: The Six Healing Health Habits You Need To Know”, and now we’re going to talk about those six things in more words than we had room for previously.
They are six things that she says we should all try to get every day. It’s a lot simpler than a lot of checklists, and very worthwhile:
Gratitude
May seem like a wishy-washy one to start with, but there’s a lot of evidence for this making a big difference to health, largely on account of how it lowers stress and anxiety. See also:
How To Get Your Brain On A More Positive Track (Without Toxic Positivity)
Love
This is about social connections, mostly. We are evolved to be a social species, and while some of us want/need more or less social interaction than others, generally speaking we thrive best in a community, with all the social support that comes with that. See also:
How To Beat Loneliness & Isolation
Outside
This is about fresh air and it’s about moving and it’s about seeing some green plants (and if available, blue sky), marvelling at the wonder of nature and benefiting in many ways. See also:
Vegetables
We spoke earlier about the whole foods plant-based diet for which she advocates, so this is that. While reducing/skipping meat etc is absolutely a thing, the focus here is on diversity of vegetables; it is best to make a game of seeing how many different ones you can include in a week (not just the same three!). See also:
Three Critical Kitchen Prescriptions
Exercise
At least 150 minutes moderate exercise per week, and some kind of resistance work. It can be calisthenics or something; it doesn’t have to be lifting weights if that’s not your thing! See also:
Resistance Is Useful! (Especially As We Get Older)
Sleep
Quality and quantity. Yes, 7–9 hours, yes, regardless of age. Unless you’re a child or a bodybuilder, in which case make it nearer 12. But for most of us, 7–9. See also:
Why You Probably Need More Sleep
Want to know more?
As well as the book we mentioned earlier, you might also like:
The Plant Power Doctor – by Dr. Gemma Newman
While the other book we mentioned is available for pre-order for Americans (it’s already released for the rest of the world), this one is available to all right now, so that’s a bonus too.
If books aren’t your thing (or even if they are), you might like her award-winning podcast:
Take care!
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Foam Rolling – by Karina Inkster
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If you’ve ever bought a foam roller only to place it under your lower back once and then put it somewhere for safekeeping and never use it again, this book will help fix that.
Karina Inkster (what a cool name) is a personal trainer, and the book also features tips and advice from physiotherapists and sports medicine specialist doctors too, so all bases are well and truly covered.
This is not, in case you’re wondering, a book that could have been a pamphlet, with photos of the exercises and one-liner explanation and that’s it. Rather, Inkster takes us through the anatomy and physiology of what’s going on, so that we can actually use this thing correctly and get actual noticeable improvements to our health from it—as promised in the subtitle’s mention of “for massage, injury prevention, and core strength”. To be clear, a lot of it is also about soft tissue mobilization, and keeping our fascia healthy (an oft-underestimated aspect of general mobility).
We would mention that since the photos are pleasantly colorful (like those on the cover) and this adds to the clarity, we’d recommend springing for the (quite inexpensive) physical copy, rather than a Kindle edition (if your e-reader is a monochrome e-ink device like this reviewer’s, anyway).
Bottom line: this book will enable your foam roller to make a difference to your life.
Click here to check out Foam Rolling, and get rolling (correctly)!
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Thinking of using an activity tracker to achieve your exercise goals? Here’s where it can help – and where it probably won’t
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It’s that time of year when many people are getting started on their resolutions for the year ahead. Doing more physical activity is a popular and worthwhile goal.
If you’re hoping to be more active in 2024, perhaps you’ve invested in an activity tracker, or you’re considering buying one.
But what are the benefits of activity trackers? And will a basic tracker do the trick, or do you need a fancy one with lots of features? Let’s take a look.
Why use an activity tracker?
One of the most powerful predictors for being active is whether or not you are monitoring how active you are.
Most people have a vague idea of how active they are, but this is inaccurate a lot of the time. Once people consciously start to keep track of how much activity they do, they often realise it’s less than what they thought, and this motivates them to be more active.
You can self-monitor without an activity tracker (just by writing down what you do), but this method is hard to keep up in the long run and it’s also a lot less accurate compared to devices that track your every move 24/7.
By tracking steps or “activity minutes” you can ascertain whether or not you are meeting the physical activity guidelines (150 minutes of moderate to vigorous physical activity per week).
It also allows you to track how you’re progressing with any personal activity goals, and view your progress over time. All this would be difficult without an activity tracker.
Research has shown the most popular brands of activity trackers are generally reliable when it comes to tracking basic measures such as steps and activity minutes.
But wait, there’s more
Many activity trackers on the market nowadays track a range of other measures which their manufacturers promote as important in monitoring health and fitness. But is this really the case? Let’s look at some of these.
Resting heart rate
This is your heart rate at rest, which is normally somewhere between 60 and 100 beats per minute. Your resting heart rate will gradually go down as you become fitter, especially if you’re doing a lot of high-intensity exercise. Your risk of dying of any cause (all-cause mortality) is much lower when you have a low resting heart rate.
So, it is useful to keep an eye on your resting heart rate. Activity trackers are pretty good at tracking it, but you can also easily measure your heart rate by monitoring your pulse and using a stopwatch.
Heart rate during exercise
Activity trackers will also measure your heart rate when you’re active. To improve fitness efficiently, professional athletes focus on having their heart rate in certain “zones” when they’re exercising – so knowing their heart rate during exercise is important.
But if you just want to be more active and healthier, without a specific training goal in mind, you can exercise at a level that feels good to you and not worry about your heart rate during activity. The most important thing is that you’re being active.
Also, a dedicated heart rate monitor with a strap around your chest will do a much better job at measuring your actual heart rate compared to an activity tracker worn around your wrist.
Maximal heart rate
This is the hardest your heart could beat when you’re active, not something you could sustain very long. Your maximal heart rate is not influenced by how much exercise you do, or your fitness level.
Most activity trackers don’t measure it accurately anyway, so you might as well forget about this one.
VO₂max
Your muscles need oxygen to work. The more oxygen your body can process, the harder you can work, and therefore the fitter you are.
VO₂max is the volume (V) of oxygen (O₂) we could breathe maximally (max) over a one minute interval, expressed as millilitres of oxygen per kilogram of body weight per minute (ml/kg/min). Inactive women and men would have a VO₂max lower than 30 and 40 ml/kg/min, respectively. A reasonably good VO₂max would be mid thirties and higher for women and mid forties and higher for men.
VO₂max is another measure of fitness that correlates well with all-cause mortality: the higher it is, the lower your risk of dying.
For athletes, VO₂max is usually measured in a lab on a treadmill while wearing a mask that measures oxygen consumption. Activity trackers instead look at your running speed (using a GPS chip) and your heart rate and compare these measures to values from other people.
If you can run fast with a low heart rate your tracker will assume you are relatively fit, resulting in a higher VO₂max. These estimates are not very accurate as they are based on lots of assumptions. However, the error of the measurement is reasonably consistent. This means if your VO₂max is gradually increasing, you are likely to be getting fitter.
So what’s the take-home message? Focus on how many steps you take every day or the number of activity minutes you achieve. Even a basic activity tracker will measure these factors relatively accurately. There is no real need to track other measures and pay more for an activity tracker that records them, unless you are getting really serious about exercise.
Corneel Vandelanotte, Professorial Research Fellow: Physical Activity and Health, CQUniversity Australia
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Gut Health 2.0
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Gene Expression & Gut Health
This is Dr. Tim Spector. After training in medicine and becoming a consultant rheumatologist, he’s turned his attention to medical research, and is these days a specialist in twin studies, genetics, epigenetics, microbiome, and diet.
What does he want us to know?
For one thing: epigenetics are for more than just getting your grandparents’ trauma.
More usefully: there are things we can do to improve epigenetic factors in our body
DNA is often seen as the script by which our body does whatever it’s going to do, but it’s only part of the story. Thinking of DNA as some kind of “magical immutable law of reality” overlooks (to labor the metaphor) script revisions, notes made in the margins, directorial choices, and ad-lib improvizations, as well as the quality of the audience’s hearing and comprehension.
Hence the premise of one of Dr. Spector’s older books, “Identically Different: Why We Can Change Our Genes”
(*in fact, it was his first, from all the way back in 2013, when he’d only been a doctor for 34 years)
Gene expression will trump genes every time, and gene expression is something that can often be changed without getting in there with CRISPR / a big pair of scissors and some craft glue.
How this happens on the micro level is beyond the scope of today’s article; part of it has to do with enzymes that get involved in the DNA transcription process, and those enzymes in turn are despatched or not depending on hormonal messaging—in the broadest sense of “hormonal”; all the body’s hormonal chemical messengers, not just the ones people think of as hormones.
However, hormonal messaging (of many kinds) is strongly influenced by something we can control relatively easily with a little good (science-based) knowledge: the gut.
The gut, the SAD, and the easy
In broad strokes: we know what is good for the gut. We’ve written about it before at 10almonds:
Making Friends With Your Gut (You Can Thank Us Later)
This is very much in contrast with what in scientific literature is often abbreviated “SAD”, the Standard American Diet, which is very bad for the gut.
However, Dr. Spector (while fully encouraging everyone to enjoy an evidence-based gut-healthy diet) wanted to do one better than just a sweeping one-size-fits-all advice, so he set up a big study with 15,000 identical twins; you can read about it here: TwinsUK
The information that came out of that was about a lot more than just gene expression and gut health, but it did provide the foundation for Dr. Spector’s next project, ZOE.
ZOE crowdsources huge amounts of data including individual metabolic responses to standardized meals in order to predict personalized food responses based on individual biology and unique microbiome profile.
In other words, it takes the guesswork out of a) knowing what your genes mean for your food responses b) tailoring your food choices with your genetic expression in mind, and c) ultimately creating a positive feedback loop to much better health on all levels.
Now, this is not an ad for ZOE, but if you so wish, you can…
- Get the free ZOE gut health guide (this is good, but generic, gut health information)
- Take the ZOE home gut health test (quiz followed by offers of lab tests)
- Browse the ZOE Health Academy, its education wing
Want to know more?
Dr. Spector has a bunch of books out, including some that we’ve reviewed previously:
- Spoon-Fed: Why Almost Everything We’ve Been Told About Food Is Wrong
- The Diet Myth: The Real Science Behind What We Eat
- Food for Life: The New Science of Eating Well
You can also check out our own previous main feature, which wasn’t about Dr. Spector’s work but was very adjacent:
The Brain-Gut Highway: A Two-Way Street
Enjoy!
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Intuitive Eating – by Evelyn Tribole and Elyse Resch
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You may be given to wonder: if this is about intuitive eating, and an anti-diet approach, why a whole book?
There’s a clue in the other part of the title: “4th Edition”.
The reason there’s a 4th edition (and before it, a 3rd and 2nd edition) is because this book is very much full of science, and science begets more science, and the evidence just keeps on rolling in.
While neither author is a doctor, each has a sizeable portion of the alphabet after their name (more than a lot of doctors), and this is an incredibly well-evidenced book.
The basic premise from many studies is that restrictive dieting does not work well long-term for most people, and instead, better is to make use of our bodies’ own interoceptive feedback.
You see, intuitive eating is not “eat randomly”. We do not call a person “intuitive” because they speak or act randomly, do we? Same with diet.
Instead, the authors give us ten guiding principles (yes, still following the science) to allow us a consistent “finger on the pulse” of what our body has to say about what we have been eating, and what we should be eating.
Bottom line: if you want to be a lot more in tune with your body and thus better able to nourish it the way it needs, this book is literally on the syllabus for many nutritional science classes, and will stand you in very good stead!
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