An unbroken night’s sleep is a myth. Here’s what good sleep looks like

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What do you imagine a good night’s sleep to be?

Often when people come into our sleep clinic seeking treatment, they share ideas about healthy sleep.

Many think when their head hits the pillow, they should fall into a deep and restorative sleep, and emerge after about eight hours feeling refreshed. They’re in good company – many Australians hold the same belief.

In reality, healthy sleep is cyclic across the night, as you move in and out of the different stages of sleep, often waking up several times. Some people remember one or more of these awakenings, others do not. Let’s consider what a healthy night’s sleep looks like.

Bricolage/Shutterstock

Sleep cycles are a roller-coaster

As an adult, our sleep moves through different cycles and brief awakenings during the night. Sleep cycles last roughly 90 minutes each.

We typically start the night with lighter sleep, before moving into deeper sleep stages, and rising again into rapid eye movement (REM) sleep – the stage of sleep often linked to vivid dreaming.

If sleeping well, we get most of our deep sleep in the first half of the night, with REM sleep more common in the second half of the night.

An older man sleeps peacefully in bed.
Deepest sleep usually happens during the first half of the night. Verin/Shutterstock

Adults usually move through five or six sleep cycles in a night, and it is entirely normal to wake up briefly at the end of each one. That means we might be waking up five times during the night. This can increase with older age and still be healthy. If you’re not remembering these awakenings that’s OK – they can be quite brief.

What does getting a ‘good’ sleep actually mean?

You’ll often hear that adults need between seven and nine hours of sleep per night. But good sleep is about more than the number of hours – it’s also about the quality.

For most people, sleeping well means being able to fall asleep soon after getting into bed (within around 30 minutes), sleeping without waking up for long periods, and waking feeling rested and ready for the day.

You shouldn’t be feeling excessively sleepy during the day, especially if you’re regularly getting at least seven hours of refreshing sleep a night (this is a rough rule of thumb).

But are you noticing you’re feeling physically tired, needing to nap regularly and still not feeling refreshed? It may be worthwhile touching base with your general practitioner, as there a range of possible reasons.

Common issues

Sleep disorders are common. Up to 25% of adults have insomnia, a sleep disorder where it may be hard to fall or stay asleep, or you may wake earlier in the morning than you’d like.

Rates of common sleep disorders such as insomnia and sleep apnoea – where your breathing can partially or completely stop many times during the night – also increase with age, affecting 20% of early adults and 40% of people in middle age. There are effective treatments, so asking for help is important.

Beyond sleep disorders, our sleep can also be disrupted by chronic health conditions – such as pain – and by certain medications.

There can also be other reasons we’re not sleeping well. Some of us are woken by children, pets or traffic noise during the night. These “forced awakenings” mean we may find it harder to get up in the morning, take longer to leave bed and feel less satisfied with our sleep. For some people, night awakenings may have no clear cause.

A good way to tell if these awakenings are a problem for you is by thinking about how they affect you. When they cause feelings of frustration or worry, or are impacting how we feel and function during the day, it might be a sign to seek some help.

Weary woman leans against a pole in an empty train carriage.
If waking up in the night is interfering with your normal day-to-day activities, it may indicate a problem. BearFotos/Shutterstock

We also may struggle to get up in the morning. This could be for a range of reasons, including not sleeping long enough, going to bed or waking up at irregular times – or even your own internal clock, which can influence the time your body prefers to sleep.

If you’re regularly struggling to get up for work or family needs, it can be an indication you may need to seek help. Some of these factors can be explored with a sleep psychologist if they are causing concern.

Can my smart watch help?

It is important to remember sleep-tracking devices can vary in accuracy for looking at the different sleep stages. While they can give a rough estimate, they are not a perfect measure.

In-laboratory polysomnography, or PSG, is the best standard measure to examine your sleep stages. A PSG examines breathing, oxygen saturation, brain waves and heart rate during sleep.

Rather than closely examining nightly data (including sleep stages) from a sleep tracker, it may be more helpful to look at the patterns of your sleep (bed and wake times) over time.

Understanding your sleep patterns may help identify and adjust behaviours that negatively impact your sleep, such as your bedtime routine and sleeping environment.

And if you find viewing your sleep data is making you feel worried about your sleep, this may not be useful for you. Most importantly, if you are concerned it is important to discuss it with your GP who can refer you to the appropriate specialist sleep health provider.

Amy Reynolds, Associate Professor in Clinical Sleep Health, Flinders University; Claire Dunbar, Research Associate, Sleep Health, Flinders University; Gorica Micic, Postdoctoral Research Fellow, Clinical Psychologist, Flinders University; Hannah Scott, Research Fellow in Sleep Health, Flinders University, and Nicole Lovato, Associate Professor, Adelaide Institute for Sleep Health, Flinders University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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  • These Signs Often Mean These Nutrient Deficiencies (Do You Have Any?)

    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.

    These are not a necessary “if this then this” equation, but rather a “if this, then probably this”, and it’s a cue to try upping that thing in your diet, and if that doesn’t quickly fix it, get some tests done:

    • White bumps on the skin: vitamin A, omega 3
    • Craving sour foods: vitamin C
    • Restless leg syndrome: iron, magnesium
    • Cracked lips: vitamin B2
    • Tingling hands and feet: vitamin B12
    • Easy bruising: vitamin K and vitamin C
    • Canker sores: vitamin B9 (folate), vitamin B12, iron
    • Brittle or misshapen nails: vitamin B7 (biotin)
    • Craving salty foods: sodium, potassium
    • Prematurely gray hair: copper, vitamin B9 (folate), vitamin B12
    • Dandruff: omega 3, zinc, vitamin B6
    • Craving ice: iron

    Dr. LeGrand Peterson has more to say about these though, as well as a visual guide to symptoms, so do check out the video:

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

    Want to know more?

    You might like this previous main feature about supplements vs nutrients from food

    Do We Need Supplements, And Do They Work?

    Enjoy!

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  • Castor Oil: All-Purpose Life-Changer, Or Snake Oil?

    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.

    As “trending” health products go, castor oil is enjoying a lot of popularity presently, lauded as a life-changing miracle-worker, and social media is abuzz with advice to put it everywhere from your eyes to your vagina.

    But:

    • what things does science actually say it’s good for,
    • what things lack evidence, and
    • what things go into the category of “wow definitely do not do that”?

    We don’t have the space to go into all of its proposed uses (there are simply far too many), but we’ll examine some common ones:

    To heal/improve the skin barrier

    Like most oils, it’s functional as a moisturizer. In particular, its high (90%!) ricinoleic fatty acid content does indeed make it good at that, and furthermore, has properties that can help reduce skin inflammation and promote wound healing:

    Bioactive polymeric formulations for wound healing ← there isn’t a conveniently quotable summary we can just grab here, but you can see the data and results, from which we can conclude:

    • formulations with ricinoleic acid (such as with castor oil) performed very well for topical anti-inflammatory purposes
    • they avoided the unwanted side effects associated with some other contenders
    • they consistently beat other preparations in the category of wound-healing

    To support hair growth and scalp health

    There is no evidence that it helps. We’d love to provide a citation for this, but it’s simply not there. There’s also no evidence that it doesn’t help. For whatever reason, despite its popularity, peer-reviewed science has simply not been done for this, or if it has, it wasn’t anywhere publicly accessible.

    It’s possible that if a person is suffering hair loss specifically as a result of prostaglandin D2 levels, that ricinoleic acid will inhibit the PGD2, reversing the hair loss, but even this is hypothetical so far, as the science is currently only at the step before that:

    In silico prediction of prostaglandin D2 synthase inhibitors from herbal constituents for the treatment of hair loss

    However, due to some interesting chemistry, the combination of castor oil and warm water can result in acute (and irreversible) hair felting, in other words, the strands of hair suddenly glue together to become one mass which then has to be cut off:

    “Castor Oil” – The Culprit of Acute Hair Felting

    👆 this is a case study, which is generally considered a low standard of evidence (compared to high-quality Randomized Controlled Trials as the highest standard of evidence), but let’s just say, this writer (hi, it’s me) isn’t risking her butt-length hair on the off-chance, and doesn’t advise you to, either. There are other hair-oils out there; argan oil is great, coconut oil is totally fine too.

    As a laxative

    This time, there’s a lot of evidence, and it’s even approved for this purpose by the FDA, but it can be a bit too good, insofar as taking too much can result in diarrhea and uncomfortable cramping (the cramps are a feature not a bug; the mechanism of action is stimulatory, i.e. it gets the intestines squeezing, but again, it can result in doing that too much for comfort):

    Castor Oil: FDA-Approved Indications

    To soothe dry eyes

    While putting oil in your eyes may seem dubious, this is another one where it actually works:

    ❝Castor oil is deemed safe and tolerable, with strong anti-microbial, anti-inflammatory, anti-nociceptive, analgesic, antioxidant, wound healing and vasoconstrictive properties.

    These can supplement deficient physiological tear film lipids, enabling enhanced lipid spreading characteristics and reducing aqueous tear evaporation.

    Studies reveal that castor oil applied topically to the ocular surface has a prolonged residence time, facilitating increased tear film lipid layer thickness, stability, improved ocular surface staining and symptoms.❞

    Source: Therapeutic potential of castor oil in managing blepharitis, meibomian gland dysfunction and dry eye

    Against candidiasis (thrush)

    We couldn’t find science for (or against) castor oil’s use against vaginal candidiasis, but here’s a study that investigated its use against oral candidiasis:

    Rosemary, Castor Oils, and Propolis Extract: Activity Against Candida Albicans and Alterations on Properties of Dental Acrylic Resins

    …in which castor oil was the only preparation that didn’t work against the yeast.

    Summary

    We left a lot unsaid today (so many proposed uses, it feels like a shame to skip them), but in few words: it’s good for skin (including wound healing) and eyes; but we’d give it a miss for hair, candidiasis, and digestive disorders.

    Want to try some?

    We don’t sell it, but here for your convenience is an example product on Amazon 😎

    Take care!

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  • Getting antivirals for COVID too often depends on where you live and how wealthy you are

    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.

    Medical experts recommend antivirals for people aged 70 and older who get COVID, and for other groups at risk of severe illness and hospitalisation from COVID.

    But many older Australians have missed out on antivirals after getting sick with COVID. It is yet another way the health system is failing the most vulnerable.

    CGN089/Shutterstock

    Who missed out?

    We analysed COVID antiviral uptake between March 2022 and September 2023. We found some groups were more likely to miss out on antivirals including Indigenous people, people from disadvantaged areas, and people from culturally and linguistically diverse backgrounds.

    Some of the differences will be due to different rates of infection. But across this 18-month period, many older Australians were infected at least once, and rates of infection were higher in some disadvantaged communities.

    How stark are the differences?

    Compared to the national average, Indigenous Australians were nearly 25% less likely to get antivirals, older people living in disadvantaged areas were 20% less likely to get them, and people with a culturally or linguistically diverse background were 13% less likely to get a script.

    People in remote areas were 37% less likely to get antivirals than people living in major cities. People in outer regional areas were 25% less likely.

    Dispensing rates by group. Grattan Institute

    Even within the same city, the differences are stark. In Sydney, people older than 70 in the affluent eastern suburbs (including Vaucluse, Point Piper and Bondi) were nearly twice as likely to have had an antiviral as those in Fairfield, in Sydney’s south-west.

    Older people in leafy inner-eastern Melbourne (including Canterbury, Hawthorn and Kew) were 1.8 times more likely to have had an antiviral as those in Brimbank (which includes Sunshine) in the city’s west.

    Why are people missing out?

    COVID antivirals should be taken when symptoms first appear. While awareness of COVID antivirals is generally strong, people often don’t realise they would benefit from the medication. They wait until symptoms get worse and it is too late.

    Frequent GP visits make a big difference. Our analysis found people 70 and older who see a GP more frequently were much more likely to be dispensed a COVID antiviral.

    Regular visits give an opportunity for preventive care and patient education. For example, GPs can provide high-risk patients with “COVID treatment plans” as a reminder to get tested and seek treatment as soon as they are unwell.

    Difficulty seeing a GP could help explain low antiviral use in rural areas. Compared to people in major cities, people in small rural towns have about 35% fewer GPs, see their GP about half as often, and are 30% more likely to report waiting too long for an appointment.

    Just like for vaccination, a GP’s focus on antivirals probably matters, as does providing care that is accessible to people from different cultural backgrounds.

    Care should go those who need it

    Since the period we looked at, evidence has emerged that raises doubts about how effective antivirals are, particularly for people at lower risk of severe illness. That means getting vaccinated is more important than getting antivirals.

    But all Australians who are eligible for antivirals should have the same chance of getting them.

    These drugs have cost more than A$1.7 billion, with the vast majority of that money coming from the federal government. While dispensing rates have fallen, more than 30,000 packs of COVID antivirals were dispensed in August, costing about $35 million.

    Such a huge investment shouldn’t be leaving so many people behind. Getting treatment shouldn’t depend on your income, cultural background or where you live. Instead, care should go to those who need it the most.

    Doctor types on laptop
    Getting antivirals shouldn’t depend on who your GP is. National Cancer Institute/Unsplash

    People born overseas have been 40% more likely to die from COVID than those born here. Indigenous Australians have been 60% more likely to die from COVID than non-Indigenous people. And the most disadvantaged people have been 2.8 times more likely to die from COVID than those in the wealthiest areas.

    All those at-risk groups have been more likely to miss out on antivirals.

    It’s not just a problem with antivirals. The same groups are also disproportionately missing out on COVID vaccination, compounding their risk of severe illness. The pattern is repeated for other important preventive health care, such as cancer screening.

    A 3-step plan to meet patients’ needs

    The federal government should do three things to close these gaps in preventive care.

    First, the government should make Primary Health Networks (PHNs) responsible for reducing them. PHNs, the regional bodies responsible for improving primary care, should share data with GPs and step in to boost uptake in communities that are missing out.

    Second, the government should extend its MyMedicare reforms. MyMedicare gives general practices flexible funding to care for patients who live in residential aged care or who visit hospital frequently. That approach should be expanded to all patients, with more funding for poorer and sicker patients. That will give GP clinics time to advise patients about preventive health, including COVID vaccines and antivirals, before they get sick.

    Third, team-based pharmacist prescribing should be introduced. Then pharmacists could quickly dispense antivirals for patients if they have a prior agreement with the patient’s GP. It’s an approach that would also work for medications for chronic diseases, such as cardiovascular disease.

    COVID antivirals, unlike vaccines, have been keeping up with new variants without the need for updates. If a new and more harmful variant emerges, or when a new pandemic hits, governments should have these systems in place to make sure everyone who needs treatment can get it fast.

    In the meantime, fairer access to care will help close the big and persistent gaps in health between different groups of Australians.

    Peter Breadon, Program Director, Health and Aged Care, Grattan Institute

    This article is republished from The Conversation under a Creative Commons license. Read the original article.

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  • Menopause, & When Not To Let Your Guard Down

    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.

    This is Dr. Jessica Shepherd, a physician Fellow of the American College of Obstetricians & Gynecologists, CEO at Sanctum Medical & Wellness, and CMO at Hers.

    She’s most well-known for her expertise in the field of the menopause. So, what does she want us to know?

    Untreated menopause is more serious than most people think

    Beyond the famous hot flashes, there’s also the increased osteoporosis risk, which is more well-known at least amongst the health-conscious, but oft-neglected is the increased cardiovascular disease risk:

    What Menopause Does To The Heart

    …and, which a lot of Dr. Shepherd’s work focuses on, it also increases dementia risk; she cites that 60–80% of dementia cases are women, and it’s also established that it progresses more quickly in women than men too, and this is associated with lower estrogen levels (not a problem for men, because testosterone does it for them) which had previously been a protective factor, but in untreated menopause, was no longer there to help:

    Alzheimer’s Sex Differences May Not Be What They Appear

    Treated menopause is safer than many people think

    The Women’s Health Initiative (WHI) study, conducted in the 90s and published in 2002, linked HRT to breast cancer, causing fear, but it turned out that this was quite bad science in several ways and the reporting was even worse (even the flawed data did not really support the conclusion, much less the headlines); it was since broadly refuted (and in fact, it can be a protective factor, depending on the HRT regimen), but fearmongering headlines made it to mainstream news, whereas “oopsies, never mind, we take that back” didn’t.

    The short version of the current state of the science is: breast cancer risk varies depending on age, HRT type, and dosage; some kinds of HRT can increase the risk marginally in those older than 60, but absolute risk is low compared to placebo, and taking estrogen alone can reduce risk at any age in the event of not having a uterus (almost always because of having had a hysterectomy; as a quirk, it is possible to be born without, though).

    It’s worth noting that even in the cases where HRT marginally increased the risk of breast cancer, it significantly decreased the risk of cancers in total, as well fractures and all-cause-mortality compared to the placebo group.

    In other words, it might be worth having a 0.12% risk of breast cancer, to avoid the >30% risk of osteoporosis, which can ultimately be just as fatal (without even looking at the other things the HRT is protective against).

    However! In the case of those who already have (or have had) breast cancer, increasing estrogen levels can indeed make that worse/return, and it becomes more complicated in cases where you haven’t had it, but there is a family history of it, or you otherwise know you have the gene for it.

    You can read more about HRT and breast cancer risk (increases and decreases) here:

    HRT: A Tale Of Two Approaches

    …and about the same with regard to HMT, here:

    The Hormone Therapy That Reduces Breast Cancer Risk & More

    Lifestyle matters, and continues to matter

    Menopause often receives the following attention from people:

    1. Perimenopause: “Is this menopause?”
    2. Menopause: “Ok, choices to make about HRT or not, plus I should watch out for osteoporosis”
    3. Postmenopause: “Yay, that’s behind me now, back to the new normal”

    The reality, Dr. Shepherd advises, is that “postmenopause” is a misnomer because if it’s not being treated, then the changes are continuing to occur in your body.

    This is a simple factor of physiology; your body is always rebuilding itself, will never stop until you die, and in untreated menopause+postmenopause, it’s now doing it without much estrogen.

    So, you can’t let your guard down!

    Thus, she recommends: focus on maintaining muscle mass, bone health, and cardiovascular health. If you focus on those things, the rest (including your brain, which is highly dependent on cardiovascular health) will mostly take care of itself.

    Because falls and fractures, particularly hip fractures, drastically reduce quality and length of life in older adults, it is vital to avoid those, and try to be sufficiently robust so that if you do go A over T, you won’t injure yourself too badly, because your bones are strong. As a bonus, the same things (especially that muscle mass we talked about) will help you avoid falling in the first place, by improving stability.

    See also: Resistance Is Useful! (Especially As We Get Older)

    And about falls specifically: Fall Special: Be Robust, Mobile, & Balanced!

    Want to know more from Dr. Shepherd?

    You might like this book of hers that we reviewed not long back:

    Generation M – by Dr. Jessica Shepherd

    Take care!

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  • What We Don’t Talk About When We Talk About Fat – by Aubrey Gordon

    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.

    There are books aplenty to encourage and help you to lose weight. This isn’t one of those.

    There are also books aplenty to encourage and help you to accept yourself and your body at the weight you are, and forge self-esteem. This isn’t one of those, either—in fact, it starts by assuming you already have that.

    There are fair arguments for body neutrality, and fat acceptance. Very worthy also is the constant fight for bodily sovereignty.

    These are worthy causes, but they’re for the most-part not what our author concerns herself with here. Instead, she cares for a different and very practical goal: fat justice.

    In a world where you may be turned away from medical treatment if you are over a certain size, told to lose half your bodyweight before you can have something you need, she demands better. The battle extends further than healthcare though, and indeed to all areas of life.

    Ultimately, she argues, any society that will disregard the needs of the few because they’re a marginal demographic, is a society that will absolutely fail you if you ever differ from the norm in some way.

    All in all, an important (and for many, perhaps eye-opening) book to read if you are fat, care about fat people, are a person of any size, or care about people in general.

    Pick Up Your Copy of “What We Don’t Talk About When We Talk About Fat”, on Amazon Today!

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  • The Osteoporosis Breakthrough – by Dr. Doug Lucas

    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.

    “Osteoporosis” and “break” often don’t go well together, but here they do. So, what’s the breakthrough here?

    There isn’t one, honestly. But if we overlook the marketing choices and focus on the book itself, the content here is genuinely good:

    The book offers a comprehensive multivector approach to combatting osteoporosis, e.g:

    • Diet
    • Exercise
    • Other lifestyle considerations
    • Supplements
    • Hormones
    • Drugs

    The author considers drugs a good and important tool for some people with osteoporosis, but not most. The majority of people, he considers, will do better without drugs—by tackling things more holistically.

    The advice here is sound and covers all reasonable angles without getting hung up on the idea of there being a single magical solution for all.

    Bottom line: if you’re looking for a book that’s a one-stop-shop for strategies against osteoporosis, this is a good option.

    Click here to check out The Osteoporosis Breakthrough, and keep your bones strong!

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