Dreams: Relevance, Meanings, Interpretations
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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 have a question or a suggestion for coverage in your “Psychology Sunday”. Dreams: their relevance, meanings ( if any) interpretations? I just wondered what the modern psychological opinions are about dreams in general.❞
We’ll indeed do that one of these Psychology Sundays! Thanks for suggesting it.
What we can say in advance is that there’s certainly not a single unified scientific consensus yet, but there are two or three prevailing views definitely worth covering, e.g. randomly generated, a by-product of reorganizing information in the brain, or expressions of subconscious thoughts/feelings.
There are also differences between a top-down/bottom-up approach to understanding dreaming, and efforts to tie those two together.
Watch this space!
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Air Purifiers & Sleep
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’ve read that air pollution has a negative effect on sleep quality and duration. Since I live next to a busy road, I was wondering whether I should invest in an air purifier. What are 10Almonds’s views?❞
Going straight to the science, there are two questions here:
- Does air pollution negatively affect sleep quality and duration?
- Does the use of an air purify actually improve the air quality in the way(s) necessary to make a difference?
We thought we’d have to tackle these questions separately, but we did find one study that addressed your question directly. It was a small study (n=30 if you believe the abstract; n=29 if you read the paper itself—one person dropped out); the results were modest but clear:
❝The purifier filter was associated with increased total sleep time for an average of 12 min per night, and increased total time in bed for an average of 19 min per night relative to the placebo.
There were several sleep and mood outcomes for which no changes were observed, and time awake after sleep onset was higher for the purifier filter. Air quality was better during the high-efficiency particulate air filter condition.
These findings offer positive indications that environmental interventions that improve air quality can have benefits for sleep outcomes in healthy populations who are not exhibiting clinical sleep disturbances.❞
In the above-linked paper’s introduction, it does establish the deleterious effect of air pollution on a wide variety of health metrics, including sleep, this latter evidenced per Caddick et al. (2018): A review of the environmental parameters necessary for an optimal sleep environment
Now, you may be wondering: is an extra 12 minutes per night worth it?
That’s your choice to make, but we would argue that it is. We can make many choices in our lives that affect our health slightly for the better or the worse. If we make a stack of choices in a particular direction, the effects will also stack, if not outright compound.
So in the case of sleep, it might be (arbitrary numbers for the sake of illustration):
- Get good exercise earlier in the day (+3%)
- Get good food earlier in the day (+2.5%)
- Practice mindfulness/meditation before bed (+2.5%)
- Have a nice dark room (+5%)
- Have fresh bedding (+2.5%)
- Have an air purifier running (+3%)
Now, those numbers are, as we said, arbitrary*, but remember that percentages don’t add up; they compound. So that “+3%” starts being a lot more meaningful than if it were just by itself.
*Confession: the figure of 3% for the air purifier wasn’t entirely arbitrary; it was based on 100(12/405) = 80/27 ≈ 3, wherein the 405 figure was an approximation of the average total time (in minutes) spent sleeping with placebo, based on a peep at their results graph. There are several ways the average could be reasonably calculated, but 6h45 (i.e., 405 minutes) was an approximate average of those reasonable approximate averages.
So, 12 minutes is a 3% improvement on that.
Don’t have an air purifier and want one?
We don’t sell them, but here’s an example on Amazon, for your convenience
Take care!
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The Fiber Fueled Cookbook – by Dr. Will Bulsiewicz
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We’ve previously reviewed Dr. Bulsiewicz’s book “Fiber Fuelled” (which is great), but this one is more than just a cookbook with the previous book in mind. Indeed, this is even a great stand-alone book by itself, since it explains the core principles well enough already, and then adds to it.
It’s also about a lot more than just “please eat more fiber”, though. It looks at FODMAPs, purine, histamine intolerance, celiac disease, altered gallbladder function, acid reflux, and more.
He offers a five-part strategy:
Genesis (what is the etiology of your problem)
- Restrict (cut things out to address that first)
- Observe (keep a food/symptom diary)
- Work things back in (re-add potential triggers one by one, see how it goes)
- Train your gut (your microbiome does not exist in a vacuum, and communication is two-way)
- Holistic healing (beyond the gut itself, looking at other relevant factors and aiming for synergistic support)
As for the recipes themselves, there are more than a hundred of them and they are good, so no more “how can I possibly cook [favorite dish] without [removed ingredient]?”
Bottom line: if you’d like better gut health, this book is a top-tier option for fixing existing complaints, and enjoying plain-sailing henceforth.
Click here to check out The Fiber Fueled Cookbook; your gut will thank you later!
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7 Principles of Becoming a Leader – by Riku Vuorenmaa
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We urge you to overlook the cliché cover art (we don’t know what they were thinking, going for the headless suited torso) because…
This one could be the best investment you make in your career this year! You may be wondering what the titular 7 principles are. We won’t keep you guessing; they are:
- Professional development: personal excellence, productivity, and time management
- Leadership development: mindset and essential leadership skills
- Personal development: your motivation, character, and confidence as a leader
- Career management: plan your career, get promoted and paid well
- Social skills & networking: work and connect with the right people
- Business- & company-understanding: the big picture
- Commitment: make the decision and commit to becoming a great leader
A lot of leadership books repeat the same old fluff that we’ve all read many times before… padded with a lot of lengthy personal anecdotes and generally editorializing fluff. Not so here!
While yes, this book does also cover some foundational things first, it’d be remiss not to. It also covers a whole (much deeper) range of related skills, with down-to-earth, brass tacks advice on putting them into practice.
This is the kind of book you will want to set as a recurring reminder in your phone, to re-read once a year, or whatever schedule seems sensible to you.
There aren’t many books we’d put in that category!
Pick Up Your Copy of the “7 Principles of Becoming a Leader” on Amazon Today!
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White Noise vs Pink Noise
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
❝I live in a large city and even late at night there is always a bit of background noise. While I am pretty used to it by now, I find I don’t sleep nearly as well in the city as I do in the country. I have seen some stuff about “white noise” generators. I was wondering whether you have any thoughts about the science behind these, and whether it is something I should try out – or maybe I should be trying something completly different.❞
The science says…
❝Our data show that white noise significantly improved sleep based on subjective and objective measurements in subjects complaining of difficulty sleeping due to high levels of environmental noise. This suggests that the application of white noise may be an effective tool in helping to improve sleep in those settings.❞
That said, you might also consider “pink noise”, which is very similar to white noise (having all frequencies normally audible to the human ear), but has greater intensity of lower frequencies, creating a more deep and even sound. While white noise and pink noise are both great at “muting” external sounds like those that have been disturbing your sleep, pink noise may have an advantage in helping to stimulate deep and restful sleep:
❝This study demonstrates that steady pink noise has significant effect on reducing brain wave complexity and inducing more stable sleep time to improve sleep quality of individuals.❞
Source: Pink noise: effect on complexity synchronization of brain activity and sleep consolidation
There may be extra benefits to pink noise, too:
Acoustic Enhancement of Sleep Slow Oscillations and Concomitant Memory Improvement in Older Adults
Rest well!
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Gymnema Sylvestre: The “Sugar Destroyer”
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The Leaf That Stops Sugar From “Working”
Gymnema sylvestre, whose botanical name in Greek and Latin means “naked thread of the woods”, and is in various Indian languages referred to be names that translate as “sugar destroyer”, has the most prosaic name in Australia: the Australian cowplant.
In English it’s mostly called by the Greek “gymnema” though, so that’s what we’ll call it here.
You may be wondering: “the sugar destroyer?”
And no, it doesn’t actually destroy sugar. But it does do quite a bit of sugar-related stuff. Here’s the science for it…
Blocks sugar receptors in your tongue
This is what it is most well-known for, and it is a topical effect, so you won’t get this from a pill, but you will get this from the leaves, or from drinking it as a tea made from the leaves.
The effect last several hours, during which time your ability to taste sweetness will be reduced, which not only makes sweet foods less appealing because they’re no longer tasting sweet, but also, once you get used to it, when you actually do taste sweet foods, they will now taste too sweet.
So, it doesn’t just temporarily curb cravings; it offers a long-term escape from such, too.
You may be wondering: “what about artificially sweetened foods and drinks?”
And the answer is: yes, it blocks perception of the sweetness of those too:
Effects of sweetness perception and caloric value of a preload on short term intake ← this study used gymnema as the sweetness-blocker, testing sugary drinks, aspartame-sweetened drinks, and unsweetened drinks
Blocks sugar receptors in the gut, too
Long story short: this slows down the absorption of sugars from the gut, thus resulting in a gentler blood sugar curve, minimizing spikes, and (because of the body’s use of blood sugars as it goes) overall lower blood sugar levels.
Want the long version? Here it is:
Benefits beyond sugar-blocking
It also prevents the accumulation of triglycerides in muscles and the liver, as well as decreasing fatty acid accumulation in the blood. In simpler terms: it lowers LDL (“bad” cholesterol”, including VLDL). As a bonus, it increases HDL (“good” cholesterol) while it’s at it.
The vast majority of the studies for this are on rats and mice though, of which you can see very many listed in the “similar articles” under this systematic review of studies:
A systematic review of Gymnema sylvestre in obesity and diabetes management
We did find one good quality human RCT, testing gymnema along with several other treatments (they found that each worked, and/but using a combination yielded the best results):
(the title says “on weight loss”, but rest assured the study also gives information about its effects on total cholesterol, LDL, HDL, overall triglycerides, and serum leptin levels, as well as excretion of urinary fat metabolites—suffice it to say, they were thorough)
Is it safe?
It has a good safety profile in general, but if you are diabetic, proceed with caution and discuss it with your endocrinologist, since it will be affecting your blood sugar levels and insulin levels. While it’s probably not enough to replace metformin or similar, it is enough that taking it carelessly could result in an unexpected hypo.
Similarly, if you have any heart condition and especially if you are being treated for that with medication, do speak with your cardiologist since its antilipemic action could potentially lower your cholesterol more than expected, and doctors don’t like surprises.
As ever, no list of contraindications will be exhaustive, and we can’t speak for your specific situation, so checking with your pharmacist/doctor is always a good idea.
Want to try some?
We don’t sell it, but here for your convenience is an example product on Amazon ← we’ve linked to a tea version of it so you can enjoy the full effects; if you prefer capsule form, you can click through from there to shop around 😎
Enjoy!
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Natto vs Tofu – Which is Healthier?
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Our Verdict
When comparing nattō to tofu, we picked the nattō.
Why?
In other words, in the comparison of fermented soy to fermented soy, we picked the fermented soy. But the relevant difference here is that nattō is fermented whole soybeans, while tofu is fermented soy milk of which the coagulated curds are then compressed into a block—meaning that the nattō is the one that has “more food per food”.
Looking at the macros, it’s therefore no surprise that nattō has a lot more fiber to go with its higher carb count; it also has slightly more protein. You may be wondering what tofu has more of, and the answer is: water.
In terms of vitamins, nattō has more of vitamins B2, B4, B6, C, E, K, and choline, while tofu has more of vitamins A, B3, and B9. So, a 7:3 win for nattō, even before considering that that vitamin C content of nattō is 65x more than what tofu has.
When it comes to minerals, nattō has more copper, iron, magnesium, manganese, potassium, and zinc, while tofu has more calcium, phosphorus, and selenium. So, a 6:3 win for nattō, and yes, the margins of difference are comparable (being 2–3x more for most of these minerals).
In short, both of these foods are great, but nattō is better.
Want to learn more?
You might like to read:
21% Stronger Bones in a Year at 62? Yes, It’s Possible (No Calcium Supplements Needed!)
Take care!
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