Blue Light At Night? Save More Than Just Your Sleep!

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Beating The Insomnia Blues

You previously asked us about recipes for insomnia (or rather, recipes/foods to help with easing insomnia). We delivered!

But we also semi-promised we’d cover a bit more of the general management of insomnia, because while diet’s important, it’s not everything.

Sleep Hygiene

Alright, you probably know this first bit, but we’d be remiss if we didn’t cover it before moving on:

  • No caffeine or alcohol before bed
    • Ideally: none earlier either, but if you enjoy one or the other or both, we realize an article about sleep hygiene isn’t going to be what changes your mind
  • Fresh bedding
    • At the very least, fresh pillowcase(s). While washing and drying an entire bedding set constantly may be arduous and wasteful of resources, it never hurts to throw your latest pillowcase(s) in with each load of laundry you happen to do.
  • Warm bed, cool room = maximum coziness
  • Dark room. Speaking of which…

About That Darkness…

When we say the room should be dark, we really mean it:

  • Not dark like “evening mood lighting”, but actually dark.
  • Not dark like “in the pale moonlight”, but actually dark.
  • Not dark like “apart from the light peeking under the doorway”, but actually dark.
  • Not dark like “apart from a few LEDs on electronic devices that are on standby or are charging”, but actually dark.

There are many studies about the impact of blue light on sleep, but here’s one as an example.

If blue light with wavelength between 415 nm and 455 nm (in the visible spectrum) hits the retina, melatonin (the sleep hormone) will be suppressed.

The extent of the suppression is proportional to the amount of blue light. This means that there is a difference between starting at an “artificial daylight” lamp, and having the blue LED of your phone charger showing… but the effect is cumulative.

And it gets worse:

❝This high energy blue light passes through the cornea and lens to the retina causing diseases such as dry eye, cataract, age-related macular degeneration, even stimulating the brain, inhibiting melatonin secretion, and enhancing adrenocortical hormone production, which will destroy the hormonal balance and directly affect sleep quality.❞

Read it in full: Research progress about the effect and prevention of blue light on eyes

See also: Age-related maculopathy and the impact of blue light hazard

So, what this means, if we value our health, is:

  • Switch off, or if that’s impractical, cover the lights of electronic devices. This might be as simple as placing your phone face-down rather than face-up, for instance.
  • Invest in blackout blinds/curtains (per your preference). Serious ones, like these ← see how they don’t have to be black to be blackout! You don’t have to sacrifice style for function
  • If you can’t reasonably do the above, consider a sleep mask. Again, a good one. Not the kind you were given on a flight, or got free with some fluffy handcuffs. We mean a full-blackout sleep mask that’s designed to be comfortable enough to sleep in, like this one.
  • If you need to get up to pee or whatever, do like a pirate and keep one eye covered/closed. That way, it’ll remain unaffected by the light. Pirates did it to retain their night vision when switching between being on-deck or below, but you can do it to halve the loss of melatonin.

Lights-Out For Your Brain Too

You can have all the darkness in the world and still not sleep if your mind is racing thinking about:

  • your recent day
  • your next day
  • that conversation you wish had gone differently
  • what you really should have done when you were 18
  • how you would go about fixing your country’s socio-political and economic woes if you were in charge
  • Etc.

We wrote about how to hit pause on all that, in a previous edition of 10almonds.

Check it out: The Off-Button For Your Brain—How to “just say no” to your racing mind (this trick really works)

Sweet dreams!

Don’t Forget…

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  • Celery vs Carrot – Which is Healthier?

    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.

    Our Verdict

    When comparing celery to carrot, we picked the carrot.

    Why?

    In terms of macros, carrot has more protein, carbs, and fiber, and is thus the “most food per food” option. The carb:fiber ratio is such that they have about the same glycemic index (when raw, anyway).

    In the category of vitamins, celery has more of vitamins B9 and K, while carrot has more of vitamins A, B1, B2, B3, B5, B6, C, E, and choline. An easy win for carrot here.

    When it comes to minerals, celery has more calcium and selenium, while carrot has more copper, iron, magnesium, manganese, phosphorus, potassium, and zinc. Another clear win for carrot.

    In short, both are very respectable foods, but carrot simply has more in it, and it’s all good.

    Enjoy!

    Want to learn more?

    You might like to read:

    Level-Up Your Fiber Intake! (Without Difficulty Or Discomfort)

    Take care!

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  • All of your hepatitis B vaccine questions answered

    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.

    Hepatitis B is a viral infection that can cause liver disease in people of any age or background. Vaccination is 95 percent effective against the virus. But in recent years, false claims, rumors, and myths about the hepatitis B vaccine have become increasingly common.

    Here’s everything you need to know about the lifesaving hepatitis B vaccine.

    What is hepatitis B?

    Hepatitis B is a liver infection caused by the hepatitis B virus. The virus attacks the liver, causing severe short-term and long-term infections. 

    Short-term hepatitis B infections may cause “fever, fatigue, loss of appetite, nausea, vomiting, jaundice (yellow skin or eyes, dark urine, clay-colored bowel movements), and pain in the muscles, joints, and stomach,” according to the Centers for Disease Control and Prevention. 

    A long-term hepatitis B infection occurs when the virus stays in the body beyond the initial infection, causing chronic illness. Hepatitis B infections become chronic in 90 percent of infected infants, half of infected young children, and between 5 to 10 percent of infected adults. 

    “Most people who go on to develop chronic hepatitis B do not have symptoms, but it is still very serious and can lead to liver damage (cirrhosis), liver cancer, and death. Chronically infected people can spread hepatitis B virus to others, even if they do not feel or look sick themselves,” says the CDC. 

    How does the hepatitis B virus spread?

    The hepatitis B virus is spread through body fluids, including blood, semen, and saliva. It can also be transmitted from birthing parent to child during pregnancy and childbirth. 

    “While hepatitis B is an infection that lives in bodily fluids, it can survive outside the human body for several days, which means that sharing contaminated household products is a possible source of infection,” said Dr. Christopher Labos, a McGill University cardiologist and epidemiologist, in a 2019 article.

    In 2022, over 250 million people worldwide had chronic hepatitis B, and 1.1 million died from the disease. Most of the deaths were from liver damage and liver cancer. Less than 15 percent of people living with hepatitis B have been diagnosed. 

    How well does the vaccine protect against hepatitis B?

    Hepatitis B vaccination is up to 95 percent effective, providing lasting—and possibly lifelong—protection against the virus. Depending on when the first dose is given, the complete vaccine series consists of two to three doses. 

    The vaccine is most effective for infants and children. The CDC recommends that infants receive it at birth for the most protection. 

    The first dose is followed by two to three additional doses administered before 18 months. Children, adolescents, and adults who weren’t vaccinated as infants should also receive the vaccine. 

    Vaccination is particularly important for high-risk groups, including health workers and those who are in close contact with individuals living with chronic hepatitis B, people who use intravenous drugs, and people receiving blood transfusions, dialysis, or organ transplants. 

    Is the vaccine safe?

    Vaccines against hepatitis B were first developed in the 1980s, and they have been proven safe for decades. They have a low risk of serious side effects and are safe enough to be given to newborns, pregnant people, and immunocompromised people.

    We also know hepatitis B vaccines work: “Between 1990 (about the time when universal hepatitis B vaccinations started) and 2006, the rate of hepatitis B infection fell by 81 percent to the lowest level ever recorded, and the decline was greatest among children,” added Labos. 

    Hepatitis B rates have continued to decline across all age groups, with the U.S. exceeding its goal of reducing new hepatitis B infections by 20 percent.

    Why do doctors recommend the vaccine for babies?

    Hepatitis B vaccination helps protect infants from a lifetime of potentially life-threatening infections and complications. Nine out of 10 unvaccinated infants infected with hepatitis B will develop chronic infections, which increases their risk of liver failure and liver cancer. 

    The hepatitis B vaccine is administered at birth to help prevent the virus from being transmitted from birthing parent to child. It also helps protect infants who might be in close contact with someone with hepatitis B. This is particularly important because most people who have hepatitis are undiagnosed. 

    Have more questions? Talk to your health care provider to learn more about hepatitis B vaccination.

    This article first appeared on Public Good News and is republished here under a Creative Commons license.

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  • Osteoporosis & Exercises: Which To Do (And Which To Avoid)

    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? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!

    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

    ❝Any idea about the latest research on the most effective exercises for osteoporosis?❞

    While there isn’t much new of late in this regard, there is plenty of research!

    First, what you might want to avoid:

    • Sit-ups, and other exercises with a lot of repeated spinal flexion
    • Running, and other high-impact exercises
    • Skiing, horse-riding, and other activities with a high risk of falling
    • Golf and tennis (both disproportionately likely to result in injuries to wrists, elbows, and knees)

    Next, what you might want to bear in mind:

    While in principle resistance training is good for building strong bones, good form becomes all the more important if you have osteoporosis, so consider working with a trainer if you’re not 100% certain you know what you’re doing:

    Strong, steady and straight: UK consensus statement on physical activity and exercise for osteoporosis

    Some of the best exercises for osteoporosis are isometric exercises:

    5 Isometric Exercises for Osteoporosis (with textual explanations and illustrative GIFs)

    You might also like this bone-strengthening exercise routine from corrective exercise specialist Kendra Fitzgerald:

    Enjoy!

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Related Posts

  • How To Reduce The Harm Of Festive Drinking (Without Abstaining)
  • Millet vs Buckwheat – Which is Healthier?

    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.

    Our Verdict

    When comparing millet to buckwheat, we picked the buckwheat.

    Why?

    Both of these naturally gluten-free grains* have their merits, but we say buckwheat comes out on top for most people (we’ll discuss the exception later).

    *actually buckwheat is a flowering pseudocereal, but in culinary terms, we’ll call it a grain, much like we call tomato a vegetable.

    Considering the macros first of all, millet has slightly more carbs while buckwheat has more than 2x the fiber. An easy win for buckwheat (they’re about equal on protein, by the way).

    In the category of vitamins, millet has more of vitamins B1, B2, B3, B6, and B9, while buckwheat has more of vitamins B5, E, K, and choline. Superficially that’s a 5:4 win for millet, though buckwheat’s margins of difference are notably greater, so the overall vitamin coverage could arguably be considered a tie.

    When it comes to minerals, millet has more phosphorus and zinc, while buckwheat has more calcium, copper, iron, magnesium, manganese, potassium, and selenium. For most of them, buckwheat’s margins of difference are again greater. An easy win for buckwheat, in any case.

    This all adds up to a clear win for buckwheat, but as promised, there is an exception: if you have issues with your kidneys that mean you are avoiding oxalates, then millet becomes the healthier choice, as buckwheat is rather high in oxalates while millet is low in same.

    For everyone else: enjoy both! Diversity is good. But if you’re going to pick one, buckwheat’s the winner.

    Want to learn more?

    You might like to read:

    Grains: Bread Of Life, Or Cereal Killer?

    Take care!

    Don’t Forget…

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  • Hardwiring Happiness – by Dr. Rick Hanson

    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.

    Publishers are very excitable about “the new science of…”, and it’s almost never actually a new science of. But what about in this case?

    No, it isn’t. It’s the very well established science of! And that’s a good thing, because it means this book is able to draw on quite a lot of research and established understanding of how neuroplasticity works, to leverage that and provide useful guidance.

    A particular strength of this book is that while it polarizes the idea that some people have “happy amygdalae” and some people have “sad amygdalae”, it acknowledges that it’s not just a fated disposition and is rather the result of the lives people have led… And then provides advice on upgrading from sad to happy, based on the assumption that the reader is quite possibly coming from a non-ideal starting point.

    The bookdoes an excellent job of straddling neuroscience and psychology, which sounds like not much of a straddle (the two are surely very connected, after all, right?) but this does mean that we’re hearing about the chemical structure of DNA inside the nuclei of the neurons of the insula, not long after reading an extended gardening metaphor about growth, choices, and vulnerabilities.

    Bottom line: if you’d like a guide to changing your brain for the better (happier) that’s not just “ask yourself: what if it goes well?” and similar CBTisms, then this is a fine book for you.

    Click here to check out Hardwiring Happiness, and indeed hardwire happiness!

    Don’t Forget…

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    Learn to Age Gracefully

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  • What Nobody Teaches You About Strengthening Your Knees

    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.

    Strengthening unhappy knees can seem difficult, because many obvious exercises like squats may hurt, and can feel like they are doing harm (and if your knees are bad enough, maybe they are; it depends on many factors). Here’s a way to improve things:

    The muscle nobody talks about

    Well, not nobody. But, it’s a muscle that’s rarely talked about; namely, the tibialis anterior.

    It plays a key role in decelerating knee motion—in other words, the movement that hurts if you have bad knees. It’s essential for absorbing shock during activities like walking, climbing stairs, and stepping off curbs

    So, of course, strengthening this muscle supports knee health.

    The exercise this video recommends for strengthening it involves leaning against a wall with feet about a foot away (closer feet make it easier, further makes it harder). Note, this is a lean, not a “Roman chair”.

    The exercise involves squeezing the quadriceps, lifting toes toward the nose, and engaging the tibialis anterior muscle. If you’re wondering what to do with your hands, they can be held out with palms open to work on posture, or hanging by the sides. Do this for about 1½–2 minutes.

    For more on all this, plus a visual demonstration, enjoy:

    Click Here If The Embedded Video Doesn’t Load Automatically!

    Want to learn more?

    You might also like to read:

    When Bad Joints Stop You From Exercising (5 Things To Change)

    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: