Sleep Smarter – by Shawn Stevenson
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You probably know to avoid blue light before bed, put a curfew on the caffeine, and have fresh bedding. So, what does this book offer that’s new?
As the subtitle suggests, it’s 21 tips for better sleep, so if even half of them are new, then it’ll still be adding value.
This is a book review, not a book summary, but to give an idea of the kind of thing you might not already know: there’s a section on bedroom houseplants! For example…
- Which plants filter the air best according to NASA, rather than “according to tradition”
- Which plants will thrive in what will hopefully be a cool dark environment
- Which plants produce oxygen even at night, rather than just during the day
The writing style is personable without losing clarity or objectivity:
- We read personal anecdotes, and we read science
- We get “I tried this”, and we get “this sleep study found such-and-such”
- We get not just the “what”, but also the “why” and the “how”
We get the little changes that make a big difference—sometimes the difference between something working or not!
Bottom line: if you’d like to get better sleep and a blue light filter hasn’t wowed you and changed your life, this book will bring your sleep knowledge (and practice) to the next level.
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Do Probiotics Work For Weight Loss?
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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
❝Can you talk about using probiotics for weight loss? Thanks❞
Great question! First, a quick catch-up:
How Much Difference Do Probiotic Supplements Make, Really?
Our above-linked article covers a number of important benefits of probiotic supplements, but we didn’t talk about weight loss at all. So let’s examine whether probiotics are useful for weight loss.
Up-front summary: the science is unclear
This 2021 systematic review found that they are indeed very effective:
❝The intake of probiotics or synbiotics could lead to significant weight reductions, either maintaining habitual lifestyle habits or in combination with energy restriction and/or increased physical activity for an average of 12 weeks.
Specific strains belonging to the genus Lactobacillus and Bifidobacterium were the most used and those that showed the best results in reducing body weight.
Both probiotics and synbiotics have the potential to help in weight loss in overweight and obese populations.❞
This slightly older (2015) systematic review and meta-analysis found the opposite:
❝Collectively, the RCTs examined in this meta-analysis indicated that probiotics have limited efficacy in terms of decreasing body weight and BMI and were not effective for weight loss.❞
Source: Probiotics for weight loss: a systematic review and meta-analysis
And in case that’s not balanced enough, this 2020 randomized controlled trial got mixed results:
❝Regression analysis performed to correlate abundance of species following supplementation with body composition parameters and biomarkers of obesity found an association between a decrease over time in blood glucose and an increase in Lactobacillus abundance, particularly in the synbiotic group.
However, the decrease over time in body mass, BMI, waist circumstance, and body fat mass was associated with a decrease in Bifidobacterium abundance.❞
Source: Effects of Synbiotic Supplement on Human Gut Microbiota, Body Composition and Weight Loss in Obesity
Summary
Probiotics may or may not work for weight loss.
In all likelihood, it depends on the blend of cultures contained in the supplement. It’s possible that Lactobacillus is more beneficial for weight loss than Bifidobacterium, which latter may actually reduce weight loss.
Or it might not, because that was just one study and correlation ≠ causation!
We’d love to give you a hard-and-fast answer, but if the data doesn’t support a hard-and-fast answer, we’re not going to lie to you.
What we can say for sure though is that probiotics come with very many health benefits, so whether or not weight loss is one of them, they’re a good thing to have for most people.
Some further articles that may interest you:
- How Much Difference Do Probiotic Supplements Make, Really? ← the aforementioned article
- Making Friends With Your Gut (You Can Thank Us Later) ← gut health 101
- Burn! How To Boost Your Metabolism ← these things can help change your metabolic base rate, which is highly relevant to weight loss
- How To Do HIIT (Without Wrecking Your Body) ←unlike most forms of exercise, which cause the body to slow the metabolism afterwards to compensate, high-intensity interval training results in an increased metabolic rate (so generally: fat-burning) for several hours after training.
Take care!
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Vegan Eager for Milk Alternatives
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It’s Q&A Day at 10almonds!
Q: Thanks for the info about dairy. As a vegan, I look forward to a future comment about milk alternatives
Thanks for bringing it up! What we research and write about is heavily driven by subscriber feedback, so notes like this really help us know there’s an audience for a given topic!
We’ll do a main feature on it, to do it justice. Watch out for Research Review Monday!
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How To Rebuild Your Neurons’ Myelin Sheaths
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PS: We Love You
Phosphatidylserine, or “PS” for short, is a phospholipid found in the brain. In other words, a kind of fatty compound that is such stuff as our brains are made of.
In particular, it’s required for healthy nerve cell membranes and myelin (the protective sheath that neurons live in—basically, myelin sheaths do for neurons what telomere caps do for DNA).
For an overview that’s more comprehensive than we have room for here, check out:
Phosphatidylserine and the human brain
Many people take it as a supplement.
Does taking it as a supplement work?
This is a valid question, as a lot of supplements can’t be absorbed well, and/or can’t pass the blood-brain barrier. But, as the above-linked study notes:
❝Exogenous PS (300-800 mg/d) is absorbed efficiently in humans, crosses the blood-brain barrier, and safely slows, halts, or reverses biochemical alterations and structural deterioration in nerve cells. It supports human cognitive functions, including the formation of short-term memory, the consolidation of long-term memory, the ability to create new memories, the ability to retrieve memories, the ability to learn and recall information, the ability to focus attention and concentrate, the ability to reason and solve problems, language skills, and the ability to communicate. It also supports locomotor functions, especially rapid reactions and reflexes.❞
(“Exogenous” means “coming from outside of the body”, as opposed to “endogenous”, meaning “made inside the body”. Effectively, in this context “exogenous” means “taken as a supplement”.)
Why do people take it?
The health claims for phosphatidylserine fall into two main categories:
- Neuroprotection (helping your brain to avoid age-related decline in the long term)
- Cognitive enhancement (helping your brain work better in the short term)
What does the science say?
There’s a lot of science that’s been done on the neuroprotective properties of PS, and there are thousands of studies we could draw from here. The upshot is that regular phosphatidylserine supplementation (most often 300mg/day, but studies are also found for 100–500mg/day) is strongly associated with a reduction in cognitive decline over the course of 12 weeks (a common study duration). Here are a some spotlight studies showing this:
- Effects of phosphatidylserine in Alzheimer’s disease
- Double-blind cross-over study of phosphatidylserine vs. placebo in patients with early dementia of the Alzheimer type
- Effect of Phosphatidylserine on Cerebral Glucose Metabolism in Alzheimer’s Disease
- The effect of soybean-derived phosphatidylserine on cognitive performance in elderly with subjective memory complaints
Note: PS can be derived from various sources, with the two most common forms being bovine (i.e., from cow brains) or soy-derived.
There is no established difference in the efficacy of these.
There have been some concerns raised about the risk of CJD (the human form of BSE, as in “mad cow disease”) from consuming brain matter from cows, but studies have not found any evidence of this actually happening.
There is also some evidence that phosphatidyserine significantly boosts cognitive performance, even in young people with no extant cognitive decline, for example:
(as the title suggests, they did also test for its effect on mood and endocrine response, but found it made no difference to those, just the cognitive function—which enjoyed a boost before exercise, as well as after it, meaning that the boost wasn’t dependent on the exercise)
PS for cognitive enhancement in the young and healthy is not nearly so well-explored as its use as a later-life guard against age-related cognitive decline. However, just because the studies in younger people are dwarfed in number by the studies in older people, doesn’t detract from the validity of the studies in younger people.
Basically: its use in older people has been studied the most, but all available evidence points to it being beneficial to brain health at all ages.
Where can we get it?
We don’t sell it (or anything else), but for your convenience, here’s an example product on Amazon.
Enjoy!
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It’s Not You, It’s Your Hormones – by Nicki Williams, DipION, mBANT, CNHC
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Nicki Williams’ basic principle is that we can manage our hormonal fluctuations, by managing our diet. Specifically, in three main ways:
- Intermittent fasting
- Anti-inflammatory diet
- Eating more protein and healthy fats
Why should these things matter to our hormones? The answer is to remember that our hormones aren’t just the sex hormones. We have hormones for hunger and satedness, hormones for stress and relaxation, hormones for blood sugar regulation, hormones for sleep and wakefulness, and more. These many hormones make up our endocrine system, and affecting one part of it will affect the others.
Will these things magically undo the effects of the menopause? Well, some things yes, other things no. No diet can do the job of HRT. But by tweaking endocrine system inputs, we can tweak endocrine system outputs, and that’s what this book is for.
The style is very accessible and clear, and Williams walks us through the changes we may want to make, to avoid the changes we don’t want.
Bottom line: this book is aimed at peri-menopausal and post-menopausal women. It could also definitely help a lot of people with PCOS too, and, when it comes down it it, pretty much anyone with an endocrine system. It’s a well-evidenced, well-established, healthy way of eating regardless of age, sex, or (most) physical conditions.
Click here to check out It’s Not You, It’s Your Hormones, and take control of yours!
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Reading As A Cognitive Exercise
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Reading, Better
It is relatively uncontroversial to say that reading is good for cognitive health, but we don’t like to make claims without science if we can help it, so let’s get started:
There was a 2021 study, which found that even when controlling for many other factors, including highest level of education, socioeconomic status, and generalized pre-morbid intelligence:
❝high reading activity, as defined by almost daily reading, was associated with lower odds of cognitive decline, compared to low reading activity❞
Source: Can reading increase cognitive reserve?
However, not all reading is the same. And this isn’t just about complexity or size of vocabulary, either. It’s about engagement.
And that level of engagement remains the key factor, no matter how quickly or slowly someone reads, as the brain tends to automatically adjust reading speed per complexity, because the brain’s “processing speed” remains the same:
Read more: Cognitive coupling during reading
Everyone’s “processing speed” is different (and is associated with generalized intelligence and executive functions), though as a general rule of thumb, the more we practice it, the faster our processing speed gets. So if you balked at the notion of “generalized intelligence” being a factor, be reassured that this association goes both ways.
So is the key to just read more?
That’s a great first step! But…
The key factor still remains: engagement.
So what does that mean?
It is not just the text that engages you. You must also engage the text!
This is akin to the difference between learning to drive by watching someone else do it, and learning by getting behind the wheel and having a go.
When it comes to reading, it should not be a purely passive thing. Sure, if you are reading a fiction book at bedtime, get lost in it, by all means. But when it comes to non-fiction reading, engage with it actively!
For example, I (your writer here, hi), when reading non-fiction:
- Read at what is generally considered an unusually fast pace, but
- Write so many notes in the margins of physical books, and
- Write so many notes using the “Notes” function on my Kindle
And this isn’t just like a studious student taking notes. Half the time I am…
- objecting to content (disagreeing with the author), or
- at least questioning it, or which is especially important, or
- noting down questions that came to my mind as a result of what I am reading.
This latter is a bit like:
- when you are reading 10almonds, sometimes you will follow our links and go off down a research rabbit-hole of your own, and that’s great!
- sometimes you will disagree with something and write to tell us, and that’s great too (when this happens, one or the other or all of us will learn something, and yes, we have published corrections before now)!
- sometimes what you read here will prompt a further question, and you’ll send that to us, and guess what, also great! We love questions.
Now, if your enjoyment of 10almonds is entirely passive, don’t let us stop you (we know our readers like quick-and-easy knowledge, and that’s good too), it’s just, the more you actively engage with it, the more you’ll get out of it.
This, by the way, was also a lifelong habit of Leonardo da Vinci, which you can read about here:
How to Think Like Leonardo da Vinci: Seven Steps to Genius Every Day – by Michael J. Gelb
a very good book that we reviewed last year
How you read (i.e. what medium) matters too!
Are you reading this on a desktop/laptop, or a mobile device? That difference could matter more than the difference between paper and digital, according to this study from 2020 that found…
❝The cumulation of evidence from this and previous studies suggests that reading on a tablet affords different interactions between the reader and the text than reading on a computer screen.
Reading on a tablet might be more similar to reading on paper, and this may impact the attentional processes during reading❞
What if my mind wanders easily?
You can either go with it, or train to improve focus.
Going with it: just make sure you have more engaging reading to get distracted by. It’s all good.
Training focus: this is trickier, but worthwhile, as executive function (you will remember from earlier) was an important factor too, and training focus is training executive function.
As for one way to do that…
If you’d like a primer for getting going with that, then you may enjoy our previous main feature:
No-Frills, Evidence-Based Mindfulness
Enjoy!
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What will aged care look like for the next generation? More of the same but higher out-of-pocket costs
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Aged care financing is a vexed problem for the Australian government. It is already underfunded for the quality the community expects, and costs will increase dramatically. There are also significant concerns about the complexity of the system.
In 2021–22 the federal government spent A$25 billion on aged services for around 1.2 million people aged 65 and over. Around 60% went to residential care (190,000 people) and one-third to home care (one million people).
The final report from the government’s Aged Care Taskforce, which has been reviewing funding options, estimates the number of people who will need services is likely to grow to more than two million over the next 20 years. Costs are therefore likely to more than double.
The taskforce has considered what aged care services are reasonable and necessary and made recommendations to the government about how they can be paid for. This includes getting aged care users to pay for more of their care.
But rather than recommending an alternative financing arrangement that will safeguard Australians’ aged care services into the future, the taskforce largely recommends tidying up existing arrangements and keeping the status quo.
No Medicare-style levy
The taskforce rejected the aged care royal commission’s recommendation to introduce a levy to meet aged care cost increases. A 1% levy, similar to the Medicare levy, could have raised around $8 billion a year.
The taskforce failed to consider the mix of taxation, personal contributions and social insurance which are commonly used to fund aged care systems internationally. The Japanese system, for example, is financed by long-term insurance paid by those aged 40 and over, plus general taxation and a small copayment.
Instead, the taskforce puts forward a simple, pragmatic argument that older people are becoming wealthier through superannuation, there is a cost of living crisis for younger people and therefore older people should be required to pay more of their aged care costs.
Separating care from other services
In deciding what older people should pay more for, the taskforce divided services into care, everyday living and accommodation.
The taskforce thought the most important services were clinical services (including nursing and allied health) and these should be the main responsibility of government funding. Personal care, including showering and dressing were seen as a middle tier that is likely to attract some co-payment, despite these services often being necessary to maintain independence.
The task force recommended the costs for everyday living (such as food and utilities) and accommodation expenses (such as rent) should increasingly be a personal responsibility.
Making the system fairer
The taskforce thought it was unfair people in residential care were making substantial contributions for their everyday living expenses (about 25%) and those receiving home care weren’t (about 5%). This is, in part, because home care has always had a muddled set of rules about user co-payments.
But the taskforce provided no analysis of accommodation costs (such as utilities and maintenance) people meet at home compared with residential care.
To address the inefficiencies of upfront daily fees for packages, the taskforce recommends means testing co-payments for home care packages and basing them on the actual level of service users receive for everyday support (for food, cleaning, and so on) and to a lesser extent for support to maintain independence.
It is unclear whether clinical and personal care costs and user contributions will be treated the same for residential and home care.
Making residential aged care sustainable
The taskforce was concerned residential care operators were losing $4 per resident day on “hotel” (accommodation services) and everyday living costs.
The taskforce recommends means tested user contributions for room services and everyday living costs be increased.
It also recommends that wealthier older people be given more choice by allowing them to pay more (per resident day) for better amenities. This would allow providers to fully meet the cost of these services.
Effectively, this means daily living charges for residents are too low and inflexible and that fees would go up, although the taskforce was clear that low-income residents should be protected.
Moving from buying to renting rooms
Currently older people who need residential care have a choice of making a refundable up-front payment for their room or to pay rent to offset the loans providers take out to build facilities. Providers raise capital to build aged care facilities through equity or loan financing.
However, the taskforce did not consider the overall efficiency of the private capital market for financing aged care or alternative solutions.
Instead, it recommended capital contributions be streamlined and simplified by phasing out up-front payments and focusing on rental contributions. This echoes the royal commission, which found rent to be a more efficient and less risky method of financing capital for aged care in private capital markets.
It’s likely that in a decade or so, once the new home care arrangements are in place, there will be proportionally fewer older people in residential aged care. Those who do go are likely to be more disabled and have greater care needs. And those with more money will pay more for their accommodation and everyday living arrangements. But they may have more choice too.
Although the federal government has ruled out an aged care levy and changes to assets test on the family home, it has yet to respond to the majority of the recommendations. But given the aged care minister chaired the taskforce, it’s likely to provide a good indication of current thinking.
Hal Swerissen, Emeritus Professor, La Trobe University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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