An Unexpected Extra Threat Of Alcohol
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If You Could Use Some Exotic Booze…
…then for health reasons, we’re going to have to say “nay”.
We’ve written about alcohol before, and needless to say, it’s not good:
(the answer is “no, we cannot”)
In fact, the WHO (which unlike government regulatory bodies setting “safe” limits on drinking, makes no profit from taxes on alcohol sales) has declared that “the only safe amount of alcohol is zero”:
WHO: No level of alcohol consumption is safe for our health
Up there, where the air is rarefied…
If you’re flying somewhere this summer (Sinatra-style flying honeymoon or otherwise), you might want to skip the alcohol even if you normally do imbibe, because:
❝…even in young and healthy individuals, the combination of alcohol intake with sleeping under hypobaric conditions poses a considerable strain on the cardiac system and might lead to exacerbation of symptoms in patients with cardiac or pulmonary diseases.
These effects might be even greater in older people; cardiovascular symptoms have a prevalence of 7% of inflight medical emergencies, with cardiac arrest causing 58% of aircraft diversions.❞
Source: Alcohol plus cabin pressure at higher altitude may threaten sleeping plane passengers’ heart health
The experiment divided subjects into a control group and a study group; the study group were placed in simulated cabin pressure as though at altitude, which found, when giving some of them two small(we’re talking the kind given on flights) alcoholic drinks:
❝The combination of alcohol and simulated cabin pressure at cruising altitude prompted a fall in SpO2 to an average of just over 85% and a compensatory increase in heart rate to an average of nearly 88 beats/minute during sleep.❞
In contrast, that was 77 beats/minute for those who had alcohol but weren’t at altitude pressure, or 64 beats/minute for those who neither drank nor were at altitude pressure.
Lots more metrics were recorded and the study is interesting to read; if you’ve ever slept on a plane and thought “that sleep was not restful at all”, then know: it wasn’t just the seat’s fault, nor the engine, nor the recycled nature of the air—it was the reduced pressure causing hypoxia (defined as having oxygen levels lower than the healthy clinical norm of 90%) and almost halving your sleep’s effectiveness for a less than 10% drop in available oxygen in the blood (the sleepers not at altitude pressure averaged 96% SpO2, compared to the 85% at altitude).
We say “almost halving” because the deep sleep phase of sleep was reduced from 84 minutes (control) to 67.5 minutes at altitude without alcohol, or 46.5 minutes at altitude with alcohol.
Again, this was a pressure cabin in a lab—so this wasn’t about the other conditions of an airplane (seats, engine hundreds of other people, etc).
Which means: in an actual airplane it’s probably even worse.
Oh, and the study participants? All healthy individuals aged 18–40, so again probably worse for those older (or younger) than that range, or with existing health conditions!
Want to know more?
You can read the study in full here:
Want to drop the drink at any altitude? Check out:
Want to get that vacation feel without alcohol? You’re going to love:
Mocktails – by Moira Clark (book)
Enjoy!
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Great Sex Never Gets Old – by Kimberly Cunningham – by Kimberly Cunningham
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Here some readers may be thinking “after 40? But I am 70 already” or such, so be assured, there’s no upper limit on the applicability of this book’s writings. The number of 40 was chosen more as the start point of things, because it is an age after which the majority of hormonal declines happen (and with them, often, sex drive and/or physical ability). But, as she explains, this is by no means necessarily an end, and can instead be an exciting new beginning.
She kicks things off with a “wellness check”, before diving into the science of the menopause—and yes, the andropause too.
She doesn’t stop there though, and discusses other hormones besides the obvious ones, and other non-hormonal factors that can affect sex in what for most people is the later half of life.
Nurse Cunningham, much like most of modern science, is strongly pro-HRT, and/but doesn’t claim it to be a magic bullet (though honestly, it can feel like it is! But here we’re reviewing the book, not HRT, so let’s continue), or else this book could have been a leaflet. Instead, she talks about the side-effects to expect (mostly good or neutral, but still, things you don’t want to be taken by surprise by), and what things will just be “a little different” now if you’re running on exogenous bioidentical hormones rather than ones your own body made. A lot of this comes down to how and when one takes them, by the way, since this can be different to your body making its own natural peaks and troughs.
But it’s not all about hormones; there are also plenty of chapters on social and psychological issues, as well as medical issues other than hormones.
The style is very light and conversational, while also casually dropping about 30 pages of scientific references. Like many nurses, the author knows at least as much as doctors when it comes to her area of expertise, and it shows.
Bottom line: if your sex has ever hit a slump, and/or you simply recognize that it could, this book could make a very important difference.
Click here to check out Great Sex Never Gets Old, and enjoy the best of life in the bedroom too!
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Yes, blue light from your phone can harm your skin. A dermatologist explains
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Social media is full of claims that everyday habits can harm your skin. It’s also full of recommendations or advertisements for products that can protect you.
Now social media has blue light from our devices in its sights.
So can scrolling on our phones really damage your skin? And will applying creams or lotions help?
Here’s what the evidence says and what we should really be focusing on.
Max kegfire/Shutterstock Remind me, what actually is blue light?
Blue light is part of the visible light spectrum. Sunlight is the strongest source. But our electronic devices – such as our phones, laptops and TVs – also emit it, albeit at levels 100-1,000 times lower.
Seeing as we spend so much time using these devices, there has been some concern about the impact of blue light on our health, including on our eyes and sleep.
Now, we’re learning more about the impact of blue light on our skin.
How does blue light affect the skin?
The evidence for blue light’s impact on skin is still emerging. But there are some interesting findings.
1. Blue light can increase pigmentation
Studies suggest exposure to blue light can stimulate production of melanin, the natural skin pigment that gives skin its colour.
So too much blue light can potentially worsen hyperpigmentation – overproduction of melanin leading to dark spots on the skin – especially in people with darker skin.
Blue light can worsen dark spots on the skin caused by overproduction of melanin. DUANGJAN J/Shutterstock 2. Blue light can give you wrinkles
Some research suggests blue light might damage collagen, a protein essential for skin structure, potentially accelerating the formation of wrinkles.
A laboratory study suggests this can happen if you hold your device one centimetre from your skin for as little as an hour.
However, for most people, if you hold your device more than 10cm away from your skin, that would reduce your exposure 100-fold. So this is much less likely to be significant.
3. Blue light can disrupt your sleep, affecting your skin
If the skin around your eyes looks dull or puffy, it’s easy to blame this directly on blue light. But as we know blue light affects sleep, what you’re probably seeing are some of the visible signs of sleep deprivation.
We know blue light is particularly good at suppressing production of melatonin. This natural hormone normally signals to our bodies when it’s time for sleep and helps regulate our sleep-wake cycle.
By suppressing melatonin, blue light exposure before bed disrupts this natural process, making it harder to fall asleep and potentially reducing the quality of your sleep.
The stimulating nature of screen content further disrupts sleep. Social media feeds, news articles, video games, or even work emails can keep our brains active and alert, hindering the transition into a sleep state.
Long-term sleep problems can also worsen existing skin conditions, such as acne, eczema and rosacea.
Sleep deprivation can elevate cortisol levels, a stress hormone that breaks down collagen, the protein responsible for skin’s firmness. Lack of sleep can also weaken the skin’s natural barrier, making it more susceptible to environmental damage and dryness.
Can skincare protect me?
The beauty industry has capitalised on concerns about blue light and offers a range of protective products such as mists, serums and lip glosses.
From a practical perspective, probably only those with the more troublesome hyperpigmentation known as melasma need to be concerned about blue light from devices.
This condition requires the skin to be well protected from all visible light at all times. The only products that are totally effective are those that block all light, namely mineral-based suncreens or some cosmetics. If you can’t see the skin through them they are going to be effective.
But there is a lack of rigorous testing for non-opaque products outside laboratories. This makes it difficult to assess if they work and if it’s worth adding them to your skincare routine.
What can I do to minimise blue light then?
Here are some simple steps you can take to minimise your exposure to blue light, especially at night when it can disrupt your sleep:
- use the “night mode” setting on your device or use a blue-light filter app to reduce your exposure to blue light in the evening
- minimise screen time before bed and create a relaxing bedtime routine to avoid the types of sleep disturbances that can affect the health of your skin
- hold your phone or device away from your skin to minimise exposure to blue light
- use sunscreen. Mineral and physical sunscreens containing titanium dioxide and iron oxides offer broad protection, including from blue light.
In a nutshell
Blue light exposure has been linked with some skin concerns, particularly pigmentation for people with darker skin. However, research is ongoing.
While skincare to protect against blue light shows promise, more testing is needed to determine if it works.
For now, prioritise good sun protection with a broad-spectrum sunscreen, which not only protects against UV, but also light.
Michael Freeman, Associate Professor of Dermatology, Bond University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Functional Exercise For Seniors – by James Atkinson
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A lot of exercises books are tailored to 20-year-old athletes training for their first Tough Mudder. Others, that the only thing standing between us and a perfect Retroflex Countersupine Divine Pretzel position is a professionally-lit Instagrammable photo.
This one’s not like that.
But! Nor does it think being over a certain age is a reason to not have genuinely robust health, of the kind that may make some younger people envious. So, it lays out, in progressive format, guidelines for exercises targeted at everything we need to build and maintain as we get older.
The writing style is clear, and the illustrations too (the cover art is the same style as the illustrations inside).
Bottom line: if you’re looking for a workout guide that understands you are nearer 80 than 18, and/but also doesn’t assume your age limits your exercise potential to “wrist exercises in chair”, then this book is a fine pick.
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Easing Election Stress & Anxiety
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At the time of writing, the US is about to have a presidential election. Most of our readers are Americans, and in any case, what the US does tends to affect most of the world, so certainly many readers in other countries will be experiencing stress and anxiety about it too.
We’re a health science publication, not a political outlet, so we’ll refrain from commenting on any candidates or campaign policies, and we’d also like to be clear we are not urging you to any particular action politically—our focus today is simply about mental health.
First, CBT what can be CBT’d
Cognitive Behavioral Therapy (CBT) is far from a panacea, but it’s often a very good starting point. And when it seems the stakes are high, it’s easy to fall into such cognitive distortions as “crystal ball” and “catastrophization”, that is to say, predicting the future and feeling the impact of that (probably undesired version of the) future, and also feeling like it will be the end of the world.
Recognizing these processes and how they work, is the first step to managing our feelings about them.
Learn more: The Art of Being Unflappable (Tricks For Daily Life)
Next, DBT what can be DBT’d
A lot of CBT hinges on the assumption that our assumptions are incorrect. For example, that our friend does not secretly despise us, that our spouse is not about to leave us, that the symptoms we are experiencing are not cancer, and in this case, that the election outcome will not go badly, and if it does, the consequences will be less severe than imagined.
But… What if our concerns are, in fact, fully justified? Here’s where Dialectic Behavior Therapy (DBT) comes in, and with it, what therapists call “radical acceptance”.
In other words, we accept up front the idea that maybe it’s going to be terrible and that will truly suck, and then either:
- there’s nothing we can reasonably do about it now (so worrying just means you’ll suffer twice), or
- there is something we can reasonably do about it now (so we can go do that thing)
After doing the thing (if appropriate), defer processing the outcome of the election until after the election. There is no point in wasting energy to worry before then. In a broadly two-party system where things are usually close between those two largest parties, there’s something close to a 50% chance of an outcome that’s, at least, not the worst you feared.
Learn more: CBT, DBT, & Radical Acceptance
Lastly, empower yourself with Behavioral Activation (BA)
Whatever the outcome of any given election, the world will keep turning, and the individual battles about any given law or policy or such will continue to go on. That’s not to say an election won’t change things—it will—but there will always still be stuff to do on a grassroots level to make the world a better place, no matter what politician has been elected.
Being involved in doing things on a community level will not only help banish any feelings of despair (and if you got the election outcome you wanted, it’ll help you feel involved), but also, it can give you a sense of control, and can even form a part of the “ikigai” that is often talked about as one of the pillars of healthy longevity.
Learn more: What’s Your Ikigai?
And if you like videos, then enjoy this one (narrated by the ever soothing-voiced Alain de Botton):
Watch now: How To Escape From A Despairing Mood (4:46) ← it also has a text version if you prefer that
Take care!
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Under Pressure: A Guide To Controlling High Blood Pressure – by Dr. Frita Fisher
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Hypertension kills a lot of people, and does so with little warning—it can be asymptomatic before it gets severe enough to cause harm, and once it causes harm, well, one heart attack or stroke is already one too many.
Aimed more squarely at people in the 35–45 danger zone (young enough to not be getting regular blood pressure checks, old enough that it may have been building up for decades), this is a very good primer on blood pressure, factors affecting it, what goes wrong, what to do about it, and how to make a good strategy for managing it for life.
The style is easy-reading, making this short (91 pages) book a very quick read, but an informative one.
Bottom line: if you are already quite knowledgeable about blood pressure and blood pressure management, this one’s probably not for you. But if you’re in the category of “what do those numbers mean again?”, then this is a very handy book to have, to get you up to speed so that you can handle things as appropriate.
Click here to check out Under Pressure, and get/keep yours under control!
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Cucumber vs Lychee – Which is Healthier?
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Our Verdict
When comparing cucumber to lychee, we picked the lychee.
Why?
In terms of macros, the lychee has more carbs and more fiber, but both are low glycemic index foods. Functionally a tie, though we could consider it a nominal win for cucumber.
In the category of vitamins, cucumber has more of vitamins A, B1, B5, and K, while lychee has more of vitamins B2, B3, B6, B9, C, E, and choline. In particular, cucumber has a lot more vitamin K and lychee has a lot more vitamin C. Nevertheless, in terms of overall vitamin coverage, lychee is the clear winner here.
Looking at minerals, cucumber has more calcium, magnesium, manganese, and zinc, while lychee has more copper (especially rich in this), iron, phosphorus, potassium, and selenium. Another clear win for lychee.
Both have an abundance of anti-inflammatory polyphenols, but we could find no strong argument for one being better than the other in this category, just different.
In short, both are fine options, but the more nutritionally dense is the lychee, so that’s our choice!
Want to learn more?
You might like to read:
Cucumber Extract Beats Glucosamine & Chondroitin… At 1/135th Of The Dose?!
Take care!
Don’t Forget…
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