Complete Guide To Fasting – By Dr. Jason Fung
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
When it comes to intermittent fasting, the plethora of options can be daunting at first, as can such questions as what fluids are ok to take vs what will break the fast, what to expect in terms of your first fasting experience, and how not to accidentally self-sabotage.
Practised well, intermittent fasting can be a very freeing experience, and not at all uncomfortable. Practised badly, it can be absolutely miserable, and this is one of those things where knowledge makes the difference.
Dr. Fung (yes, the same Dr. Fung we’ve featured before as an expert on metabolic health) shares this knowledge over the course of 304 pages, with lots of scientific information and insider tips. He covers the different kinds of fasting, how each of them work and what they do for the body and brain, hunger/satiety hacks, lots of “frequently asked questions”, and even a range of recipes to help smooth your journey along its way.
The style is very well-written pop-science; it’s engaging and straightforward without skimping on science at all.
Bottom line: if you’re thinking of trying intermittent fasting but aren’t sure where/how to best get started, this book can set you off on the right foot and keep you on the right track thereafter.
Click here to check out The Complete Guide to Fasting, and enjoy the process as well as the results!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Recommended
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
-
Proteins Of The Week
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
This week’s news round-up is, entirely by chance, somewhat protein-centric in one form or another. So, check out the bad, the very bad, the mostly good, the inconvenient, and the worst:
Mediterranean diet vs the menopause
Researchers looked at hundreds of women with an average age of 51, and took note of their dietary habits vs their menopause symptoms. Most of them were consuming soft drinks and red meat, and not good in terms of meeting the recommendations for key food groups including vegetables, legumes, fruit, fish and nuts, and there was an association between greater adherence to Mediterranean diet principles, and better health.
Read in full: Fewer soft drinks and less red meat may ease menopause symptoms: Study
Related: Four Ways To Upgrade The Mediterranean Diet
Listeria in meat
This one’s not a study, but it is relevant important news. The headline pretty much says it all, so if you don’t eat meat, this isn’t one you need to worry about any further than that. If you do eat meat, though, you might want to check out the below article to find out whether the meat you eat might be carrying listeria:
Read in full: Almost 10 million pounds of meat recalled due to Listeria danger
Related: Frozen/Thawed/Refrozen Meat: How Much Is Safety, And How Much Is Taste?
Brawn and brain?
A study looked at cognitively healthy older adults (of whom, 57% women), and found an association between their muscle strength and their psychological wellbeing. Note that when we said “cognitively healthy”, this means being free from dementia etc—not necessarily psychologically health in all respects, such as also being free from depression and enjoying good self-esteem.
Read in full: Study links muscle strength and mental health in older adults
Related: Staying Strong: Tips To Prevent Muscle Loss With Age
The protein that blocks bone formation
This one’s more clinical but definitely of interest to any with osteoporosis or at high risk of osteoporosis. Researchers identified a specific protein that blocks osteoblast function, thus more of this protein means less bone production. Currently, this is not something that we as individuals can do anything about at home, but it is promising for future osteoporosis meds development.
Read in full: Protein blocking bone development could hold clues for future osteoporosis treatment
Related: Which Osteoporosis Medication, If Any, Is Right For You?
Rabies risk
People associate rabies with “rabid dogs”, but the biggest rabies threat is actually bats, and they don’t even need to necessarily bite you to confer the disease (it suffices to have licked the skin, for instance—and bats are basically sky-puppies who will lick anything). Because rabies has a 100% fatality rate in unvaccinated humans, this is very serious. This means that if you wake up and there’s a bat in the house, it doesn’t matter if it hasn’t bitten anyone; get thee to a hospital (where you can get the vaccine before the disease takes hold; this will still be very unpleasant but you’ll probably survive so long as you get the vaccine in time).
Read in full: What to know about bats and rabies
Related: Dodging Dengue In The US ← much less serious than rabies, but still not to be trifled with—particularly noteworthy if you’re in an area currently affected by floodwaters or even just unusually heavy rain, by the way, as this will leave standing water in which mosquitos breed.
Take care!
Share This Post
-
The Brain’s Way of Healing – by Dr. Norman Doidge
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
First, what this book isn’t: any sort of wishy-washy “think yourself better” fluff, and nor is it a “tapping into your Universal Divine Essence” thing.
In contrast, Dr. Norman Doidge sticks with science, and the only “vibrational frequencies” involved are the sort that come from an MRI machine or similar.
The author makes bold claims of the potential for leveraging neuroplasticity to heal many chronic diseases. All of them are neurological in whole or in part, ranging from chronic pain to Parkinson’s.
How well are these claims backed up, you ask?
The book makes heavy use of case studies. In science, case studies rarely prove anything, so much as indicate a potential proof of principle. Clinical trials are what’s needed to become more certain, and for Dr. Doidge’s claims, these are so far sadly lacking, or as yet inconclusive.
Where the book’s strengths lie is in describing exactly what is done, and how, to effect each recovery. Specific exercises to do, and explanations of the mechanism of action. To that end, it makes them very repeatable for any would-be “citizen scientist” who wishes to try (in the cases that they don’t require special equipment).
Bottom line: this book would be more reassuring if its putative techniques had enjoyed more clinical studies… But in the meantime, it’s a fair collection of promising therapeutic approaches for a number of neurological disorders.
Click here to check out The Brain’s Way of Healing, and learn more!
Share This Post
-
What To Eat, Take, And Do Before A Workout
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
What to eat, take, and do before a workout
We’ve previously written about how to recover quickly after a workout:
Overdone It? How To Speed Up Recovery After Exercise
Today we’ll look at the flipside: how to prepare for exercise.
Pre-workout nutrition
As per what we wrote (and referenced) above, a good dictum is “protein whenever; carbs after”. See also:
Pre- versus post-exercise protein intake has similar effects on muscular adaptations
It’s recommended to have a light, balanced meal a few hours before exercising, though there are nuances:
International society of sports nutrition position stand: nutrient timing
Hydration
You will not perform well unless you are well-hydrated:
Influence of Dehydration on Intermittent Sprint Performance
However, you also don’t want to just be sloshing around when exercising because you took care to get in your two litres before hitting the gym.
For this reason, quality can be more important than quantity, and sodium and other electrolytes can be important and useful, but will not be so for everyone in all circumstances.
Here’s what we wrote previously about that:
Are Electrolyte Supplements Worth It?
Pre-workout supplements
We previously wrote about the use of creatine specifically:
Creatine: Very Different For Young & Old People
Caffeine is also a surprisingly effective pre-workout supplement:
International society of sports nutrition position stand: caffeine and exercise performance
Depending on the rate at which you metabolize caffeine (there are genes for this), the effects will come/go earlier/later, but as a general rule of thumb, caffeine should work within about 20 minutes, and will peak in effect 1–2 hours after consumption:
Nutrition Supplements to Stimulate Lipolysis: A Review in Relation to Endurance Exercise Capacity
Branched Chain Amino Acids, or BCAAs, are commonly enjoyed as pre-workout supplement to help reduce creatine kinase and muscle soreness, but won’t accelerate recovery:
…but will help boost muscle-growth (or maintenance, depending on your exercise and diet) in the long run:
Where can I get those?
We don’t sell them, but here’s an example product on Amazon, for your convenience
There are also many multi-nutrient pre-workout supplements on the market (like the secondary product offered with the BCAA above). We’d need a lot more room to go into all of those (maybe we’ll include some in our Monday Research Review editions), but meanwhile, here’s some further reading:
The 11 Best Pre-Workout Supplements According to a Dietitian
(it’s more of a “we ranked these commercial products” article than a science article, but it’s a good starting place for understanding about what’s on offer)
Enjoy!
Share This Post
Related Posts
-
The Not-So-Sweet Science Of Sugar Addiction
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
One
LumpMechanism Of Addiction Or Two?In Tuesday’s newsletter, we asked you to what extent, if any, you believe sugar is addictive; we got the above-depicted, below-described, set of responses:
- About 47% said “Sugar is chemically addictive, comparable to alcohol”
- About 34% said “Sugar is chemically addictive, comparable to cocaine”
- About 11% said “Sugar is not addictive; that’s just excuse-finding hyperbole”
- About 9% said “Sugar is a behavioral addiction, comparable to video gaming”
So what does the science say?
Sugar is not addictive; that’s just excuse-finding hyperbole: True or False?
False, by broad scientific consensus. As ever, the devil’s in the
detailsdefinitions, but while there is still discussion about how best to categorize the addiction, the scientific consensus as a whole is generally: sugar is addictive.That doesn’t mean scientists* are a hive mind, and so there will be some who disagree, but most papers these days are looking into the “hows” and “whys” and “whats” of sugar addiction, not the “whether”.
*who are also, let us remember, a diverse group including chemists, neurobiologists, psychologists, social psychologists, and others, often collaborating in multidisciplinary teams, each with their own focus of research.
Here’s what the Center of Alcohol and Substance Use Studies has to say, for example:
Sugar Addiction: More Serious Than You Think
Sugar is a chemical addiction, comparable to alcohol: True or False?
True, broadly, with caveats—for this one, the crux lies in “comparable to”, because the neurology of the addiction is similar, even if many aspects of it chemically are not.
In both cases, sugar triggers the release of dopamine while also (albeit for different chemical reasons) having a “downer” effect (sugar triggers the release of opioids as well as dopamine).
Notably, the sociology and psychology of alcohol and sugar addictions are also similar (both addictions are common throughout different socioeconomic strata as a coping mechanism seeking an escape from emotional pain).
See for example in the Journal of Psychoactive Drugs:
On the other hand, withdrawal symptoms from heavy long-term alcohol abuse can kill, while withdrawal symptoms from sugar are very much milder. So there’s also room to argue that they’re not comparable on those grounds.
Sugar is a chemical addiction, comparable to cocaine: True or False?
False, broadly. There are overlaps! For example, sugar drives impulsivity to seek more of the substance, and leads to changes in neurobiological brain function which alter emotional states and subsequent behaviours:
The impact of sugar consumption on stress driven, emotional and addictive behaviors
However!
Cocaine triggers a release of dopamine (as does sugar), but cocaine also acts directly on our brain’s ability to remove dopamine, serotonin, and norepinephrine:
The Neurobiology of Cocaine Addiction
…meaning that in terms of comparability, they (to use a metaphor now, not meaning this literally) both give you a warm feeling, but sugar does it by turning up the heating a bit whereas cocaine does it by locking the doors and burning down the house. That’s quite a difference!
Sugar is a behavioral addiction, comparable to video gaming: True or False?
True, with the caveat that this a “yes and” situation.
There are behavioral aspects of sugar addiction that can reasonably be compared to those of video gaming, e.g. compulsion loops, always the promise of more (without limiting factors such as overdosing), anxiety when the addictive element is not accessible for some reason, reduction of dopaminergic sensitivity leading to a craving for more, etc. Note that the last is mentioning a chemical but the mechanism itself is still behavioral, not chemical per se.
So, yes, it’s a behavioral addiction [and also arguably chemical in the manners we’ve described earlier in this article].
For science for this, we refer you back to:
The impact of sugar consumption on stress driven, emotional and addictive behaviors
Want more?
You might want to check out:
Beating Food Addictions: When It’s More Than “Just” Cravings
Take care!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
-
Do We Need Sunscreen In Winter, Really?
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!
As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!
So, no question/request too big or small 😎
❝I keep seeing advice that we shoudl wear sunscreen out in winter even if it’s not hot or sunny, but is there actually any real benefit to this?❞
Short answer: yes (but it’s indeed not as critical as it is during summer’s hot/sunny days)
Longer answer: first, let’s examine the physics of summer vs winter when it comes to the sun…
In summer (assuming we live far enough from the equator to have this kind of seasonal variation), the part of the planet where we live is tilted more towards the sun. This makes it closer, and more importantly, it’s more directly overhead during the day. The difference in distance through space isn’t as big a deal as the difference in distance through the atmosphere. When the sun is more directly overhead, its rays have a shorter path through our atmosphere, and thus less chance of being blocked by cloud cover / refracted elsewhere / bounced back off into space before it even gets that far.
In winter, the opposite of all that is true.
Morning/evening also somewhat replicate this compared to midday, because the sun being lower in the sky has a similar effect to seasonal variation causing it to be less directly overhead.
For this reason, even though visually the sun may be just as bright on a winter morning as it is on a summer midday, the rays have been filtered very differently by the time they get to us.
This is one reason why you’re much less likely to get sunburned in the winter, compared to the summer (others include the actual temperature difference, your likely better hydration, and your likely more modest attire protecting you).
However…
The reason it is advisable to wear sunscreen in winter is not generally about sunburn, and is rather more about long-term cumulative skin damage (ranging from accelerated aging to cancer) caused by the UV rays—specifically, mostly UVA rays, since UVB rays (with their higher energy but shorter wavelength) have nearly all been blocked by the atmosphere.
Here’s a good explainer of that from the American Cancer Society:
UV (Ultraviolet) Radiation and Cancer Risk
👆 this may seem like a no-brainer, but there’s a lot explained here that demystifies a lot of things, covering ionizing vs non-ionizing radiation, x-rays and gamma-rays, the very different kinds of cancer caused by different things, and what things are dangerous vs which there’s no need to worry about (so far as best current science can say, at least).
Consequently: yes, if you value your skin health and avoidance of cancer, wearing sunscreen when out even in the winter is a good idea. Especially if your phone’s weather app says the UV index is “moderate” or above, but even if it’s “low”, it doesn’t hurt to include it as part of your skincare routine.
But what if sunscreens are dangerous?
Firstly, not all sunscreens are created equal:
Learn more: Who Screens The Sunscreens?
Secondly: consider putting on a protective layer of moisturizer first, and then the sunscreen on top. Bear in mind, this is winter we’re talking about, so you’re probably not going out in a bikini, so this is likely a face-neck-hands job and you’re done.
What about vitamin D?
Humans evolved to have more or less melanin in our skin depending on where we lived, and white people evolved to wring the most vitamin D possible out of the meagre sun far from the equator. Black people’s greater melanin, on the other hand, offers some initial protection against the sun (but any resultant skin cancer is then more dangerous than it would be for white people if it does occur, so please do use sunscreen whatever your skintone).
Nowadays many people live in many places which may or may not be the places we evolved for, and so we have to take that into account when it comes to sun exposure.
Here’s a deeper dive into that, for those who want to learn:
Take care!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
-
Why do I need to get up during the night to wee? Is this normal?
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
It can be normal to wake up once or even twice during the night to wee, especially as we get older.
One in three adults over 30 makes at least two trips to the bathroom every night.
Waking up from sleep to urinate on a regular basis is called nocturia. It’s one of the most commonly reported bothersome urinary symptoms (others include urgency and poor stream).
So what causes nocturia, and how can it affect wellbeing?
A range of causes
Nocturia can be caused by a variety of medical conditions, such as heart or kidney problems, poorly controlled diabetes, bladder infections, an overactive bladder, or gastrointestinal issues. Other causes include pregnancy, medications and consumption of alcohol or caffeine before bed.
While nocturia causes disrupted sleep, the reverse is true as well. Having broken sleep, or insomnia, can also cause nocturia.
When we sleep, an antidiuretic hormone is released that slows down the rate at which our kidneys produce urine. If we lie awake at night, less of this hormone is released, meaning we continue to produce normal rates of urine. This can accelerate the rate at which we fill our bladder and need to get up during the night.
Stress, anxiety and watching television late into the night are common causes of insomnia.
Sometimes we need to get up late at night to pee.
Christian MoroEffects of nocturia on daily functioning
The recommended amount of sleep for adults is between seven and nine hours per night. The more times you have to get up in the night to go to the bathroom, the more this impacts sleep quantity and quality.
Decreased sleep can result in increased tiredness during the day, poor concentration, forgetfulness, changes in mood and impaired work performance.
If you’re missing out on quality sleep due to nighttime trips to the bathroom, this can affect your quality of life.
In more severe cases, nocturia has been compared to having a similar impact on quality of life as diabetes, high blood pressure, chest pain, and some forms of arthritis. Also, frequent disruptions to quality and quantity of sleep can have longer-term health impacts.
Nocturia not only upsets sleep, but also increases the risk of falls from moving around in the dark to go to the bathroom.
Further, it can affect sleep partners or others in the household who may be disturbed when you get out of bed.
Can you have a ‘small bladder’?
It’s a common misconception that your trips to the bathroom are correlated with the size of your bladder. It’s also unlikely your bladder is smaller relative to your other organs.
If you find you are having to wee more than your friends, this could be due to body size. A smaller person drinking the same amount of fluids as someone larger will simply need to go the bathroom more often.
If you find you are going to the bathroom quite a lot during the day and evening (more than eight times in 24 hours), this could be a symptom of an overactive bladder. This often presents as frequent and sudden urges to urinate.
If you are concerned about any lower urinary tract symptoms, it’s worth having a chat with your family GP.
There are some medications that can assist in the management of nocturia, and your doctor will also be able to help identify any underlying causes of needing to go to the toilet during the night.
A happy and healthy bladder
Here are some tips to maintain a happy and healthy bladder, and reduce the risk you’ll be up at night:
- make your sleep environment comfortable, with a suitable mattress and sheets to suit the temperature
- get to bed early, and limit screens, or activites before bed
- limit foods and drinks that irritate the bladder, such as coffee or alcohol, especially before bedtime
- sit in a relaxed position when urinating, and allow time for the bladder to completely empty
- practice pelvic floor muscle exercises
- drink an adequate amount of fluids during the day, and avoid becoming dehydrated
- maintain a healthy lifestyle, eat nutritious foods and do not do anything harmful to the body such as smoking or using illicit drugs
- review your medications, as the time you take some pharmaceuticals may affect urine production or sleep
- if you have swollen legs, raise them a few hours before bedtime to let the fluid drain.
Christian Moro, Associate Professor of Science & Medicine, Bond University and Charlotte Phelps, Senior Teaching Fellow, Medical Program, Bond University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails: