The Aesthetic Brain – by Dr. Anjan Chatterjee
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Dr. Anjan Chatterjee (not to be mistaken for Dr. Rangan Chatterjee, whose books we have also sometimes reviewed before) is a neurologist.
A lot about aesthetics is easy enough to understand. We like physical features in humans that suggest a healthy mate, and we like lush and/or colorful plants that reassure us that we will have plenty to eat.
But what about a beautiful building, or a charcoal drawing of some captivatingly eldritch horror? And what, neurologically speaking, is the difference between a bowl of fruit and a painting of a bowl of fruit? And what, if anything, does appreciation of such do for us?
In this very readable pop-science book, we learn about these things and many more, from the perspective of an experienced neurologist who explains things simply but with plenty of science.
Bottom line: if you’d like to understand how and why your brain does more things than just process tasks necessary for survival, this book will give you plenty of insight.
Click here to check out The Aesthetic Brain, and learn more about yours!
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Astrology, Mental health and the Economics of Well Being
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Ultimately can the mental health system single-handedly address the concerns of inequality and economic access in society?
Around 75 per cent of the Indian population lives in rural areas, but their access to quality mental health care is limited and traditional approaches continue to be in use. The shortage is to such a large extent that there are only 0.7 physicians per 1000 population and only one psychiatrist for every 343,000 Indians. While over the years the mental health sector has seen major developments, like the 2017 mental health care act. This act establishes equal access for all citizens, to avail government-run or funded mental health services in the country. However, it does not bridge the gap in society as the majority of the population remains deeply unaware or unable to access these services.
While the uncertainties of the pandemic brought mental wellbeing to the forefront, the national budget for the sector dropped, making this an issue of human rights. This accessibility to services is further corroborated by the recurring financial expenses of medications and frequent visits to government clinics. The cost of sessions is steep and a single session is not ideal. Spending exorbitant amounts on healthcare is a burden most families can’t afford leading to debt. In the absence of insurance and healthcare schemes and provisions, therapy remains a luxury to many Indians.
Economic struggles are only one of the causes of this discerning gap in the mental health sector. Barriers caused by sexuality, gender, caste and religion also play a major role in mediating people’s perception and access to therapeutic services. The persistent stigma surrounding mental health, especially in India continues to be a hindrance to seeking help. The supernatural inhibitions and disparity in knowledge across communities only create more confusion. The notion that mental well being is an optional expense is popular, even though the country’s population is in a dire state. Data collected in a WHO report found that nearly 15 per cent of Indian adults need active intervention for one or more mental health issues.
The population disregards the very prevalence of such mental disorders and more than often finds it fruitless to receive treatment. Some who are open-minded fail to afford the hiked fees that therapists in urban settings charge, leaving them with no option. While for years Indians attributed the systemic weakness of the mental health system to the people’s attitudes, a 2016 survey showed more than 42% of people have positive attitudes toward mental wellbeing and treatment. While the skeptics remain, these underprivileged sections of society too struggle to gain the accessibility they deserve.
This is where astrology, tarot card reading and other spiritual practices, have created a market for themselves in the well-being industry. The sceptics, and those from poor socio-economic backgrounds resort to these local and easily accessible ways of coping, to instil the faith they so desperately need. Astrology is a layman’s substitute for therapy, or for some even a supplement when they cannot afford extended periods of treatment. Visiting a local astrologer in many ways breeds the self-awareness one would expect from a session in therapy. These practices even hold certain similarities to actual psychotherapy settings, in the way they define, and alleviate aspects of one’s personality and behaviour.
Very often one simply needs an explanation, or an answer to the ‘why’ no matter how scientifically rooted that response truly is. Astrologers impart a level of faith, that things will get better. For those in rural areas, struggling to provide the bare necessities to their family affording therapy is impossible, so their local psychic, astrologer or pandit becomes their anchor during emotional duress. Tarot cards and other practices primarily focus on the future and act as a guide point for how to deal with the things ahead. For a farmer coping with anxiety, access to anti-anxiety medication is strained, and so is therapy. His best bet remains to consult his next-door jyotish about his burdens.
A famous clinician Caroline Hexdall in an interview said that “ Part of the popularity of astrology and tarot today has to do with their universal nature”. With growing technology and the pervasiveness of social media, people can gain easy access to self-care and astrology resources. Apps and web pages provide daily tarot cards, zodiac signs readings and astrological predictions for people, and almost serve the purpose of a therapist. Is reading the lines on our palm, and checking the alignment of the stars enough to cure the mental illness they undergo? Is it a solution or a quick fix as a consequence of an ignorant healthcare system?
Several studies have also shown the deteriorating effects of depending on astrology. Cases of worsening and onset of depression, anxiety and personality disorders are common for those who use astrology as more than just a temporary coping mechanism. It also becomes a source of losing control, as every feeling is attributed to fate and destiny, instilling a sense of helplessness. Ultimately can the mental health system single-handedly address the concerns of inequality and economic access in society?
Maahira Jain is a third-year student at Ashoka University studying Psychology and Media studies. She is a movie buff and is extremely passionate about writing and traveling.
This article is republished from OpenAxis under a Creative Commons license. Read the original article.
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Undo The Sun’s Damage To Your Skin
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It’s often said that our skin is our largest organ. Our brain or liver are the largest solid organs by mass (which one comes out on top will vary from person to person), our gut is the longest, and our lungs are the largest by surface area. But our skin is large, noticeable, and has a big impact on the rest of our health.
The sun is one of the main damaging factors for our skin; assorted toxins are also a major threat for many people, and once the skin barrier gets broken, it’s a field-day for bacteria.
So, what can we do about it?
Tretinoin: the skin’s rejuvenator
Tretinoin is also called retinoic acid, not to be mistaken for retinol, although they are both retinoids. Tretinoin is much stronger.
As for what it’s stronger at:
It’s usually prescribed for the treatment of sun-damage, acne, and wrinkles. Paradoxically, it works by inflaming the skin (and then making it better, and having done so, keeping it better).
In few words: it encourages your skin to speed up its life cycle, which means that cells die and are replaced sooner, which means the average age of skin cells will be considerably younger at any given time.
This is the same principle as we see at work when it comes to cellular apoptosis and autophagy in general, and specifically the same idea as we discussed when talking about senolytics, compounds that kill aging cells:
Fisetin: The Anti-Aging Assassin
About that paradoxical inflammation…
❝The topical use of tretinoin as an antiacne agent began almost a half century ago. Since that time it has been successfully used to treat comedonal and inflammatory acne.
Over the intervening years, the beneficial effects of tretinoin have grown from an understanding of its potent cornedolytie-related properties to an evolving appreciation of its antiinflammatory actions.
…
The topical use of clindamycin and tretinoin as a combination treatment modality that includes antibacterial, comedolytic, and antiinflammatoiy properties has proven to be a very effective therapy for treating the various stages of acne
…
It is now becoming increasingly clear that there may be good reasons for these observations.❞
~ Drs. Schmidt & Gans, lightly edited here for brevity
Read in full: Tretinoin: A Review of Its Anti-inflammatory Properties in the Treatment of Acne
Against damage by the sun
The older we get, the more likely sun damage is a problem than acne. And in the case of tretinoin,
❝In several well-controlled clinical trials, the proportion of patients showing improvement was significantly higher with 0.01 or 0.05% tretinoin cream than with placebo for criteria such as global assessment, fine and coarse wrinkling, pigmentation and roughness.
Improvements in the overall severity of photodamage were also significantly greater with tretinoin than with placebo.
…
Several placebo-controlled clinical studies have demonstrated that topical tretinoin has significant efficacy in the treatment of photodamaged skin. Improvements in subjective global assessment scores were recorded in:
49–100% of patients using once-daily 0.01% tretinoin,
68–100% of patients using 0.05% tretinoin, and
0–44% of patients using placebo.❞
~ Drs. Wagstaff & Noble
…which is quite compelling.
Read in full: Tretinoin: A Review of its Pharmacological Properties and Clinical Efficacy in the Topical Treatment of Photodamaged Skin
This is very well-established by now; here’s an old paper from when the mechanism of action was unknown (here in the current day, 17 mechanisms of action have been identified; beyond the scope of this article as we only have so much room, but it’s nice to see science building on science):
❝Tretinoin cream has been used extensively to reverse the changes of photoaging. It is the first topical therapy to undergo controlled clinical testing and proved to be efficacious. These results have been substantiated with photography, histopathologie examination, and skin surface replicas.
…
Tretinoin cream has an excellent safety record; a local cutaneous hypervitaminosis A reaction is the only common problem.❞
~ Dr. Goldfarb et al.
Read in full: Topical tretinoin therapy: Its use in photoaged skin
Is it safe?
For most people, when used as directed*, yes. However, it’s likely to irritate your skin at first, and that’s normal. If this persists more than a few weeks, or seems unduly severe, then you might want to stop and talk to your doctor again.
*See also: Scarring following inappropriate use of 0.05% tretinoin gel
(in the case of a young woman who used it 4x daily instead of 1x daily)
Want to try some?
Tretinoin is prescription-only, so speak with your doctor/pharmacist about that. Alternatively, retinal (not retinol) is the strongest natural alternative that works on the same principles; here’s an example product on Amazon 😎
Take care!
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‘Naked carbs’ and ‘net carbs’ – what are they and should you count them?
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According to social media, carbs come in various guises: naked carbs, net carbs, complex carbs and more.
You might be wondering what these terms mean or if all carbs are really the same. If you are into “carb counting” or “cutting carbs”, it’s important to make informed decisions about what you eat.
What are carbs?
Carbohydrates, or “carbs” for short, are one of the main sources of energy we need for brain function, muscle movement, digestion and pretty much everything our bodies do.
There are two classifications of carbs, simple and complex. Simple carbs have one or two sugar molecules, while complex carbs are three or more sugar molecules joined together. For example, table sugar is a simple carb, but starch in potatoes is a complex carb.
All carbs need to be broken down into individual molecules by our digestive enzymes to be absorbed. Digestion of complex carbs is a much slower process than simple carbs, leading to a more gradual blood sugar increase.
Fibre is also considered a complex carb, but it has a structure our body is not capable of digesting. This means we don’t absorb it, but it helps with the movement of our stool and prevents constipation. Our good gut bacteria also love fibre as they can digest it and use it for energy – important for a healthy gut.
What about ‘naked carbs’?
“Naked carbs” is a popular term usually used to refer to foods that are mostly simple carbs, without fibre or accompanying protein or fat. White bread, sugary drinks, jams, sweets, white rice, white flour, crackers and fruit juice are examples of these foods. Ultra-processed foods, where the grains are stripped of their outer layers (including fibre and most nutrients) leaving “refined carbs”, also fall into this category.
One of the problems with naked carbs or refined carbs is they digest and absorb quickly, causing an immediate rise in blood sugar. This is followed by a rapid spike in insulin (a hormone that signals cells to remove sugar from blood) and then a drop in blood sugar. This can lead to hunger and cravings – a vicious cycle that only gets worse with eating more of the same foods.
What about ‘net carbs’?
This is another popular term tossed around in dieting discussions. Net carbs refer to the part of the carb food that we actually absorb.
Again, fibre is not easily digestible. And some carb-rich foods contain sugar alcohols, such as sweeteners (like xylitol and sorbitol) that have limited absorption and little to no effect on blood sugar. Deducting the value of fibre and sugar alcohols from the total carbohydrate content of a food gives what’s considered its net carb value.
For example, canned pear in juice has around 12.3g of “total carbohydrates” per 100g, including 1.7g carb + 1.7g fibre + 1.9g sugar alcohol. So its net carb is 12.3g – 1.7g – 1.9g = 8.7g. This means 8.7g of the 12.3g total carbs impacts blood sugar.
The nutrition labels on packaged foods in Australia and New Zealand usually list fibre separately to carbohydrates, so the net carbs have already been calculated. This is not the case in other countries, where “total carbohydrates” are listed.
Does it matter though?
Whether or not you should care about net or naked carbs depends on your dietary preferences, health goals, food accessibility and overall nutritional needs. Generally speaking, we should try to limit our consumption of simple and refined carbs.
The latest World Health Organization guidelines recommend our carbohydrate intake should ideally come primarily from whole grains, vegetables, fruits and pulses, which are rich in complex carbs and fibre. This can have significant health benefits (to regulate hunger, improve cholesterol or help with weight management) and reduce the risk of conditions such as heart disease, obesity and colon cancer.
In moderation, naked carbs aren’t necessarily bad. But pairing them with fats, protein or fibre can slow down the digestion and absorption of sugar. This can help to stabilise blood sugar levels, prevent spikes and crashes and support personal weight management goals. If you’re managing diabetes or insulin resistance, paying attention to the composition of your meals, and the quality of your carbohydrate sources is essential.
A ketogenic (high fat, low carb) diet typically restricts carb intake to between 20 and 50g each day. But this carb amount refers to net carbs – so it is possible to eat more carbs from high-fibre sources.
Some tips to try
Some simple strategies can help you get the most out of your carb intake:
reduce your intake of naked carbs and foods high in sugar and white flour, such as white bread, table sugar, honey, lollies, maple syrup, jam, and fruit juice
opt for protein- and fibre-rich carbs. These include oats, sweet potatoes, nuts, avocados, beans, whole grains and broccoli
if you are eating naked carbs, dress them up with some protein, fat and fibre. For example, top white bread with a nut butter rather than jam
if you are trying to reduce the carb content in your diet, be wary of any symptoms of low blood glucose, including headaches, nausea, and dizziness
- working with a health-care professional such as an accredited practising dietitian or your GP can help develop an individualised diet plan that meets your specific needs and goals.
Correction: this article has been updated to indicate how carbohydrates are listed on food nutrition labels in Australia and New Zealand.
Saman Khalesi, Senior Lecturer and Discipline Lead in Nutrition, School of Health, Medical and Applied Sciences, CQUniversity Australia; Anna Balzer, Lecturer, Medical Science School of Health, Medical and Applied Sciences, CQUniversity Australia; Charlotte Gupta, Postdoctoral research fellow, CQUniversity Australia; Chris Irwin, Senior Lecturer in Nutrition and Dietetics, School of Health Sciences & Social Work, Griffith University, and Grace Vincent, Senior Lecturer, Appleton Institute, CQUniversity Australia
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Non-Sleep Deep Rest: A Neurobiologist’s Take
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How to get many benefits of sleep, while awake!
Today we’re talking about Dr. Andrew Huberman, a neuroscientist and professor in the department of neurobiology at Stanford School of Medicine.
He’s also a popular podcaster, and as his Wikipedia page notes:
❝In episodes lasting several hours, Huberman talks about the state of research in a specific topic, both within and outside his specialty❞
Today, we won’t be taking hours, and we will be taking notes from within his field of specialty (neurobiology). Specifically, in this case:
Non-Sleep Deep Rest (NSDR)
What is it? To quote from his own dedicated site on the topic:
❝What is NSDR (Yoga Nidra)? Non-Sleep Deep Rest, also known as NSDR, is a method of deep relaxation developed by Dr. Andrew Huberman, a neuroscientist at Stanford University School of Medicine.
It’s a process that combines controlled breathing and detailed body scanning to bring you into a state of heightened awareness and profound relaxation. The main purpose of NSDR is to reduce stress, enhance focus, and improve overall well-being.❞
While it seems a bit bold of Dr. Huberman to claim that he developed yoga nidra, it is nevertheless reassuring to get a neurobiologist’s view on this:
How it works, by science
Dr. Huberman says that by monitoring EEG readings during NSDR, we can see how the brain slows down. Measurably!
- It goes from an active beta range of 13–30 Hz (normal waking) to a conscious meditation state of an alpha range of 8–13 Hz.
- However, with practice, it can drop further, into a theta range of 4–8 Hz.
- Ultimately, sustained SSDR practice can get us to 0.5–3 Hz.
This means that the brain is functioning in the delta range, something that typically only occurs during our deepest sleep.
You may be wondering: why is delta lower than theta? That’s not how I remember the Greek alphabet being ordered!
Indeed, while the Greek alphabet goes alpha beta gamma delta epsilon zeta eta theta (and so on), the brainwave frequency bands are:
- Gamma = concentrated focus, >30 Hz
- Beta = normal waking, 13–30 Hz
- Alpha = relaxed state, 8–13 Hz
- Theta = light sleep, 4–8 Hz
- Delta = deep sleep, 1–4 Hz
Source: Sleep Foundation ← with a nice infographic there too
NSDR uses somatic cues to engage our parasympathetic nervous system, which in turn enables us to reach those states. The steps are simple:
- Pick a time and place when you won’t be disturbed
- Lie on your back and make yourself comfortable
- Close your eyes as soon as you wish, and now that you’ve closed them, imagine closing them again. And again.
- Slowly bring your attention to each part of your body in turn, from head to toe. As your attention goes to each part, allow it to relax more.
- If you wish, you can repeat this process for another wave, or even a third.
- Find yourself well-rested!
Note: this engagement of the parasympathetic nervous system and slowing down of brain activity accesses restorative states not normally available while waking, but 10 minutes of NSDR will not replace 7–9 hours of sleep; nor will it give you the vital benefits of REM sleep specifically.
So: it’s an adjunct, not a replacement
Want to try it, but not sure where/how to start?
When you’re ready, let Dr. Huberman himself guide you through it in this shortish (10:49) soundtrack:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to try it, but not right now? Bookmark it for later
Take care!
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The Wandering Mind – by Dr. Michael Corballis
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Our mind’s tendency to wander can be a disability, but could it also be a superpower? Dr. Corballis makes the case for such.
While many authors focus on, well, how to focus, Dr. Corballis argues in this book that our wandering imagination can be more effective at problem-solving and creative tasks, than a focused, blinkered mind.
The book’s a quick read (184 pages of quite light reading), and yet still quite dense with content. He takes us on a tour of the brain, theory of mind, the Default Mode Network (where a lot of the brain’s general ongoing organization occurs), learning, memory, forgetting, and creativity.
Furthermore, he cites (and explains) studies showing what kinds of “breaks” from mental work allow the wandering mind to do its thing at peak efficiency, and what kinds of breaks are counterproductive. Certainly this has practical applications for all of us!
Bottom line: if you’d like to be less frustrated by your mind’s tendency to wander, this is a fine book to show how to leverage that trait to your benefit.
Click here to check out The Wandering Mind, and set yours onto more useful tracks!
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Stick with It – by Dr. Sean Young
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Most of us know the theory when it comes to building new habits and/or replacing old ones, and maybe we even implement those ideas. So why is our success rate still not as high as we think it should be?
Dr. Sean Young is here to do science to it!
This book comes with advice and explanations that rely a lot less on “that sounds reasonable” and a lot more on “in this recent high-quality study, researchers found…”
And, at 10almonds, we love that. We’re all for trying new things that sound reasonable in general… but we definitely prefer when there’s a stack of solid science to point to, and that’s the kind of thing we recommend!
Dr. Young is big on using that science to find ways to trick our brains and get them working the way we want.
Each chapter has lots of science, lots of explanations, and lots of actionable step-by-step advice.
Bottom line: if you’re all over “Atomic Habits”, this one’s the science-based heavy-artillery for your practical neurohacking.
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