Night School – by Dr. Richard Wiseman

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Sleep is a largely neglected part of health for most people. Compared to factors like food and exercise, it’s something that experientially we’re mostly not present for! Little wonder then that we also often feel like it’s outside of our control.

While Dr. Wiseman does cover the usual advices with regard to getting good sleep, this book has a lot more than that.

Assuming that they go beyond the above, resources about sleep can usually be divided into one of two categories:

  • Hard science: lots about brainwaves, sleep phases, circadian rhythms, melatonin production, etc… But nothing very inspiring!
  • Fantastical whimsy: lots about dreams, spiritualism, and not a scientific source to be found… Nothing very concrete!

This book does better.

We get the science and the wonder. When it comes to lucid dreaming, sleep-learning, sleep hypnosis, or a miraculously reduced need for sleep, everything comes with copious scientific sources or not at all. Dr. Wiseman is well-known in his field for brining scientific skepticism to paranormal claims, by the way—so it’s nice to read how he can do this without losing his sense of wonder. Think of him as the Carl Sagan of sleep, perhaps.

Style-wise, the book is pop-science and easy-reading. Unsurprising, for a professional public educator and science-popularizer.

Structurally, the main part of the book is divided into lessons. Each of these come with background science and principles first, then a problem that we might want to solve, then exercises to do, to get the thing we want. It’s at once a textbook and an instruction manual.

Bottom line: this is a very inspiring book with a lot of science. Whether you’re looking to measurably boost your working memory or heal trauma through dreams, this book has everything.

Click here to check out Night School and learn what your brain can do!

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  • Cherries vs Blueberries – Which is Healthier?

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    Our Verdict

    When comparing cherries to blueberries, we picked the blueberries.

    Why?

    It was close! And blueberries only won by virtue of taking an average value for cherries; we could have (if you’ll pardon the phrase) cherry-picked tart cherries for extra benefits that’d put them ahead of blueberries. That’s how close it is.

    In terms of macros, they are almost identical, so nothing to set them apart there.

    In the category of vitamins, they are mostly comparable except that blueberries have a lot more vitamin K, and cherries have a lot more vitamin A. Since vitamin K is the vitamin that’s scarcer in general, we’ll call blueberries’ vitamin K content a win.

    Blueberries do also have about 6x more vitamin E, with a cup of blueberries containing about 10% of the daily requirement (and cherries containing almost none). Another small win for blueberries.

    When it comes to minerals, they are mostly comparable; the largest point of difference is that blueberries contain more manganese while cherries contain more copper; nothing to decide between them here.

    We’re down to counting amino acids and antioxidants now, so blueberries have a lot more cystine and tyrosine. They also have slightly more of amino acids that they both only have trace amounts of. And as for antioxidants? Blueberries contain notably more quercetin.

    So, blueberries win the day—but if we had specified tart cherries rather than taking an average, they could have come out on top. Enjoy both!

    Want to learn more?

    You might like to read:

    Take care!

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  • How (And Why) To Do Foot-Rolling

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    Foot rolling isn’t just for pain relief—it helps rewire nerve connections, improve balance, and support overall well-being.

    There are some things to bear in mind if you want to benefit, though:

    On the ball

    With the ball underfoot, roll the ball back and forth and in small circles for a couple of minutes, and:

    • if you find a tender spot, press there and roll for about 15 seconds before continuing
    • if doing this while seated, lean forwards slightly to apply your weight to it at the correct angle
    • if you can, do it while standing though, as this will enable you to get the full benefits of not just the foot pressure, but also the improvement to your balance and stabilization muscles

    Because of the nerve connections, this can (especially if you use a massage ball, the kind with many small blunt spikes) also engage your parasympathetic nervous system, thus activating your relaxation response, which means lowered cortisol levels, improved digestion and healing, and various other “rest and digest” benefits that one doesn’t get while in fight-or-flight mode or even in neutral.

    For more on this plus a visual demonstration, enjoy:

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

    Want to learn more?

    You might also like:

    The Vagus Nerve (And How You Can Make Use Of It) ← the vagus nerve doesn’t go all the way down to the feet itself, of course, but the message will get up to the vagus nerve anyway

    Take care!

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  • Guava vs Pineapple – Which is Healthier?

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    Our Verdict

    When comparing guava to pineapple, we picked the guava.

    Why?

    Pineapple is great, but guava just beats it in most ways:

    In terms of macros, guava has nearly 4x the fiber and nearly 5x the protein, for the same carbs, giving it the notably lower glycemic index. An easy win for guava in this category.

    In the category of vitamins, guava has a lot more of vitamins A, B2, B3, B5, B9, C, E, and K, while pineapple has marginally more vitamin B1. Another clear win for guava.

    When it comes to minerals, guava has more calcium, copper, magnesium, phosphorus, potassium, selenium, and zinc, while pineapple has more iron and manganese. One more win for guava!

    In other considerations, pineapple contains bromelain, which is an enzyme* found in pineapple (and only in pineapple), that has many very healthful properties, some of them unique to bromelain (and thus: unique to pineapple). So that’s a point in pineapple’s favor finally.

    *actually a group of enzymes, but most often referred to collectively in the singular. But when you do see it referred to as “they” sometimes in papers, that’s what that means.

    Adding up the sections nevertheless makes for a clear overall win for guava, but by all means do enjoy either or both, as diversity is best!

    Want to learn more?

    You might like:

    Bromelain vs Inflammation & Much More

    Enjoy!

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  • Life After Death? (Your Life; A Loved One’s Death)

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    The Show Must Go On

    We’ve previously written about the topics of death and dying. It’s not cheery, but it is important to tackle.

    Sooner is better than later, in the case of:

    Preparations For Managing Your Own Mortality

    And for those who are left behind, of course it is hardest of all:

    What Grief Does To Your Body (And How To Manage It)

    But what about what comes next? For those who are left behind, that is.

    Life goes on

    In cases when the death is that of a close loved one, the early days after death can seem like a surreal blur. How can the world go ticking on as normal when [loved one] is dead?

    But incontrovertibly, it does, so we can only ask again: how?

    And, we get to choose that, to a degree. The above-linked article about grief gives a “101” rundown, but it’s (by necessity, for space) a scant preparation for one of the biggest challenges in life that most of us will ever face.

    For many people, processing grief involves a kind of “saying goodbye”. For others, it doesn’t, as in the following cases of grieving the loss of one’s child—something no parent should ever have to face, but it happens:

    Dr. Ken Druck | The Love That Never Dies

    (with warning, the above article is a little heavy)

    In short: for those who choose not to “say goodbye” in the case of the death of a loved one, it’s more often not a case of cold neglect, but rather the opposite—a holding on. Not in the “denial” sense of holding on, but rather in the sense of “I am not letting go of this feeling of love, no matter how much it might hurt to hold onto; it’s all I have”.

    What about widows, and love after death?

    Note: we’ll use the feminine “widow” here as a) it’s the most common and b) most scientific literature focuses on widows, but there is no reason why most of the same things won’t also apply to widowers.

    We say “most”, as society does tend to treat widows and widowers differently, having different expectations about a respectful mourning period, one’s comportment during same, and so on.

    As an aside: most scientific literature also assumes heterosexuality, which is again statistically reasonable, and for the mostpart the main difference is any extra challenges presented by non-recognition of marriages, and/or homophobic in-laws. But otherwise, grief is grief, and as the saying goes, love is love.

    One last specificity before we get into the meat of this: we are generally assuming marriages to be monogamous here. Polyamorous arrangements will likely sidestep most of these issues completely, but again, they’re not the norm.

    Firstly, there’s a big difference between remarrying (or similar) after being widowed, and remarrying (or similar) after a divorce, and that largely lies in the difference of how they begin. A divorce is (however stressful it may often be) more often seen as a transition into a new period of freedom, whereas bereavement is almost always felt as a terrible loss.

    The science, by the way, shows the stats for this; people are less likely to remarry, and slower to remarry if they do, in instances of bereavement rather than divorce, for example:

    Timing of Remarriage Among Divorced and Widowed Parents

    Love after death: the options

    For widows, then, there seem to be multiple options:

    • Hold on to the feelings for one’s deceased partner; never remarry
    • Grieve, move on, find new love, relegating the old to history
    • Try to balance the two (this is tricky but can be done*)

    *Why is balancing the two tricky, and how can it be done?

    It’s tricky because ultimately there are three people’s wishes at hand:

    • The deceased (“they would want me to be happy” vs “I feel I would be betraying them”—which two feelings can also absolutely come together, by the way)
    • Yourself (whether you actually want to get a new partner, or just remain single—this is your 100% your choice either way, and your decision should be made consciously)
    • The new love (how comfortable are they with your continued feelings for your late love, really?)

    And obviously only two of the above can be polled for opinions, and the latter one might say what they think we want to hear, only to secretly and/or later resent it.

    One piece of solid advice for the happily married: talk with your partner now about how you each would feel about the other potentially remarrying in the event of your death. Do they have your pre-emptive blessing to do whatever, do you ask a respectable mourning period first (how long?), would the thought just plain make you jealous? Be honest, and bid your partner be honest too.

    One piece of solid advice for everyone: make sure you, and your partner(s), as applicable, have a good emotional safety net, if you can. Close friends or family members that you genuinely completely trust to be there through thick and thin, to hold your/their hand through the emotional wreck that will likely follow.

    Because, while depression and social loneliness are expected and looked out for, it’s emotional loneliness that actually hits the hardest, for most people:

    Longitudinal Examination of Emotional Functioning in Older Adults After Spousal Bereavement

    …which means that having even just one close friend or family member with whom one can be at one’s absolute worst, express emotions without censure, not have to put on the socially expected appearance of emotional stability… Having that one person (ideally more, but having at least one is critical) can make a huge difference.

    But what if a person has nobody?

    That’s definitely a hard place to be, but here’s a good starting point:

    How To Beat Loneliness & Isolation

    Take care!

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  • The Vaccine vs Joint Pain (And More)

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    …and other items from this week’s health news:

    Vaccine may put an end to chikungunya-related inflammatory joint pain!

    Researchers (Dr. Nivethika Sivakumaran et al.) have developed experimental adjuvant-free biopolymer particles designed to prevent chikungunya infection and the months-or-years of joint pain that often follow it.

    How the vaccine works: Dr. Sivakumaran and her team engineered E. coli to assemble synthetic particles displaying chikungunya surface antigens that closely mimic the virus without causing disease.

    This is important, because chikungunya commonly causes severe joint and muscle pain, and up to 60% of patients develop chronic joint symptoms that can persist for months or years and resemble rheumatoid arthritis.

    Next, she plans to move things into clinical development, starting with safety trials of course, before progressing to studies that test how well the vaccine prevents infection and long-term joint damage on a larger scale.

    Read in full: Chikungunya vaccine update: Experimental adjuvant-free particles aim to prevent months of joint pain

    Related: Why Rheumatoid Arthritis Often Defies Drugs (& What Else you Can Try)

    Nestlé doing another recall, this time Danone is too

    Commercial giants Nestlé and Danone have recalled infant formula across more than 60 countries since December, due to possible toxin contamination.

    The toxin in question, cereulide, isn’t destroyed by cooking or preparation and can cause nausea, vomiting, and abdominal cramps if consumed.

    The Food Standards Agency (FSA) said the issue is linked to arachidonic acid (ARA) being used in the manufacturing process. The FSA also says that investigations are ongoing, and that the manufacturers must explain what went wrong and show how they’ll prevent a repeat.

    Read in full: More baby formula products recalled over toxin fears

    Related: Breast Milk’s Benefits That Are (So Far) Not Replicable

    Body composition changed by changing hormones

    It turns out that if you change the hormones that are responsible for changing body composition, body composition changes!

    When you put it like that, it may not seem like breaking news, and in a way it shouldn’t be, but a systematic review and meta-analysis published in the British Journal of Sports Medicine analyzed 52 studies, with 43 included in a meta-analysis covering 6,485 participants aged 14–41 years. In total this pooled sample included 2,943 transgender women, 2,309 transgender men, 5,68 cisgender women, and 6,65 cisgender men.

    In this current age, the US has recently adopted the stance first imposed on the Olympics by Nazi Germany in 1936, that is to say, that trans women must not be allowed to compete.

    So, where does the science stand on this? Head to head…

    Transgender women vs cisgender women: no statistically significant differences were found in relative fat mass, relative lean mass, upper-body strength, lower-body strength, or aerobic capacity, and after 1–3 years of hormone therapy, transgender women generally showed increased fat mass and decreased lean mass and upper-body strength.

    Could we have known this before? Well, maybe. Most Americans have seen pictures of the famous Nazi book burnings. Most don’t know what those books were; it was the library of the Institut für Sexualwissenschaft, containing most of the world’s scientific research so far assembled on what Dr. Magnus Hirschfield called “sexual intermediacy”, which covered a lot of matters of primary and secondary sexual characteristics, the influence of various factors on various outcomes, and also the sciences of diverse traits such as homosexuality, intersexuality, and transsexuality. But, to the Nazis, this research was all “Jewish sexual degeneracy”, so they burned it all.

    A great loss for science, and here we are, nearly 100 years later!

    Read in full: New meta-analysis challenges claims of athletic advantage for transgender women

    Related: ROAR – by Dr. Stacy Sims ← an excellent book on female athleticism, hormones, body composition, hormone-modulated physical performance, and more

    Enjoy!

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  • Ruminating vs Processing

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    When it comes to traumatic experiences, there are two common pieces of advice for being able to move forwards functionally:

    1. Process whatever thoughts and feelings you need to process
    2. Do not ruminate

    The latter can seem, at first glance, a lot like the former. So, how to tell them apart, and how to do one without the other?

    Getting tense

    One major difference between the two is the tense in which our mental activity takes place:

    • processing starts with the traumatic event (or perhaps even the events leading up to the traumatic event), analyses what happened and if possible why, and then asks the question “ok, what now?” and begins work on laying out a path for the future.
    • rumination starts with the traumatic event (or perhaps even the events leading up to the traumatic event), analyses what happened and if why, oh why oh why, “I was such an idiot, if only I had…” and gets trapped in a fairly tight (and destructive*) cycle of blame and shame/anger, never straying far from the events in question.

    *this may be directly self-destructive, but it can also sometimes be only indirectly self-destructive, for example if the blame and anger is consciously placed with someone else.

    This idea fits in, by the way, with Dr. Elisabeth Kübler-Ross’s “five stages of grief” model; rumination here represents the stages “bargaining”, “despair”, and “anger”, while emotional processing here represents the stage “acceptance”. Thus, it may be that rumination does have a place in the overall process—just don’t get stuck there!

    For more on healthily processing grief specifically:

    What Grief Does To The Body (And How To Manage It)

    Grief, by the way, can be about more than the loss of a loved one; a very similar process can play out with many other kinds of unwanted life changes too.

    What are the results?

    Another way to tell them apart is to look at the results of each. If you come out of a long rumination session feeling worse than when you started, it’s highly unlikely that you just stopped too soon and were on the verge of some great breakthrough. It’s possible! But not likely.

    • Processing may be uncomfortable at first, and if it’s something you’ve ignored for a long time, that could be very uncomfortable at first, but there should quite soon be some “light at the end of the tunnel”. Perhaps not even because a solution seems near, but because your mind and body recognize “aha, we are doing something about it now, and thus may find a better way forward”.
    • Rumination tends to intensify and prolong uncomfortable emotions, increases stress and anxiety, and likely disrupts sleep. At best, it may serve as a tipping point to seek therapy or even just recognize “I should figure out a way to deal with this, because this isn’t doing me any good”. At worst, it may serve as a tipping point to depression, and/or substance abuse, and/or suicidality.

    See also: How To Stay Alive (When You Really Don’t Want To) ← which also has a link back to our article on managing depression, by the way!

    Did you choose it, really?

    A third way to tell them apart is the level of conscious decision that went into doing it.

    • Processing is almost always something that one decides “ok, let’s figure this out”, and sits down to figure it out.
    • Rumination tends to be about as voluntary as social media doomscrolling. Technically we may have decided to begin it (we also might not have made any conscious decision, and just acted on impulse), but let’s face it, our hands weren’t at the wheel for long, at all.

    A good way to make sure that it is a conscious process, is to schedule time for it in advance, and then do it only during that time. If thoughts about it come up at other times, tell yourself “no, leave that for later”, and then deal with it when (and only when) the planned timeslot arrives.

    It’s up to you and your schedule what time you pick, but if you’re unsure, consider an hour in the early evening. That means that the business of the day is behind you, but it’s also not right before bed, so you should have some decompression time as a buffer. So for example, perhaps after dinner you might set a timer* for an hour, and sit down to journal, brainstorm, or just plain think, about the matter that needs processing.

    *electronic timers can be quite jarring, and may distract you while waiting for the beeps. So, consider investing in a relaxing sand timer like this one instead.

    Is there any way to make rumination less bad?

    As we mentioned up top, there’s a case to be made for “rumination is an early part of the process that gets us where we need to go, and may not be skippable, or may not be advisable to skip”.

    So, if you are going to ruminate, then firstly, we recommend again bordering it timewise (with a timer as above) and having a plan to pull yourself out when you’re done rather than getting stuck there (such as: The Off-Button For Your Brain: How To Stop Negative Thought Spirals).

    And secondly, you might want to consider the following technique, which allows one to let one’s brain know that the thing we’re thinking about / imagining is now to be filed away safely; not lost or erased, but sent to the same place that nightmares go after we wake up:

    A Surprisingly Powerful Tool: Eye Movement Desensitization & Reprocessing (EMDR)

    What if I actually do want to forget?

    That’s not usually recommendable; consider talking it through with a therapist first. However, for your interest, there is a way:

    The Dark Side Of Memory (And How To Forget)

    Take care!

    Don’t Forget…

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