Does Eating Shellfish Contribute To Gout?
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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 about seafood as healthy, doesn’t eating shellfish contribute to gout?❞
It can do! Gout (a kind of inflammatory arthritis characterized by the depositing of uric acid crystals in joints) has many risk factors, and diet is one component, albeit certainly the most talked-about one.
First, you may be wondering: isn’t all arthritis inflammatory? Since arthritis is by definition the inflammation of joints, this is a reasonable question, but when it comes to classifying the kinds, “inflammatory” arthritis is caused by inflammation, while “non-inflammatory” arthritis (a slightly confusing name) merely has inflammation as one of its symptoms (and is caused by physical wear-and-tear). For more information, see:
- Tips For Avoiding/Managing Rheumatoid Arthritis ←inflammatory
- Tips For Avoiding/Managing Osteoarthritis ← “non-inflammatory”
As for gout specifically, top risk factors include:
- Increasing age: risk increases with age
- Being male: women do get gout, but much less often
- Hypertension: all-cause hypertension is the biggest reasonably controllable factor
There’s not a lot we can do about age (but of course, looking after our general health will tend to slow biological aging, and after all, diseases only care about the state of our body, not what the date on the calendar is).
As for sex, this risk factor is hormones, and specifically has to do with estrogen and testosterone’s very different effects on the immune system (bearing in mind that chronic inflammation is a disorder of the immune system). However, few if any men would take up feminizing hormone therapy just to lower their gout risk!
That leaves hypertension, which happily is something that we can all (barring extreme personal circumstances) do quite a bit about. Here’s a good starting point:
Hypertension: Factors Far More Relevant Than Salt
…and for further pointers:
How To Lower Your Blood Pressure (Cardiologists Explain)
As for diet specifically (and yes, shellfish):
The largest study into this (and thus, one of the top ones cited in a lot of other literature) looked at 47,150 men with no history of gout at the baseline.
So, with the caveat that their findings could have been different for women, they found:
- Eating meat in general increased gout risk
- Narrowing down specific meats: beef, pork, and lamb were the worst offenders
- Eating seafood in general increased gout risk
- Narrowing down specific seafoods: all seafoods increased gout risk within a similar range
- As a specific quirk of seafoods: the risk was increased if the man had a BMI under 25
- Eating dairy in general was not associated with an increased risk of gout
- Narrowing down specific dairy foods: low-fat dairy products such as yogurt were associated with a decreased risk of gout
- Eating purine-rich vegetables in general was not associated with an increased risk of gout
- Narrowing down to specific purine-rich vegetables: no purine-rich vegetable was associated with an increase in the risk of gout
Dairy products were included in the study, as dairy products in general and non-fermented dairy products in particular are often associated with increased inflammation. However, the association was simply not found to exist when it came to gout risk.
Purine-rich vegetables were included in the study, as animal products highest in purines have typically been found to have the worst effect on gout. However, the association was simply not found to exist when it came to plants with purines.
You can read the full study here:
Purine-Rich Foods, Dairy and Protein Intake, and the Risk of Gout in Men
So, the short answer to your question of “doesn’t eating shellfish contribute to the risk of gout” is:
Yes, it can, but occasional consumption probably won’t result in gout unless you have other risk factors going against you.
If you’re a slim male 80-year-old alcoholic smoker with hypertension, then definitely do consider skipping the lobster, but honestly, there may be bigger issues to tackle there.
And similarly, obviously skip it if you have a shellfish allergy, and if you’re vegan or vegetarian or abstain from shellfish for religious reasons, then you can certainly live very healthily without ever having any.
See also: Do We Need Animal Products, To Be Healthy?
For most people most of the time, a moderate consumption of seafood, including shellfish if you so desire, is considered healthy.
As ever, do speak with your own doctor to know for sure, as your individual case may vary.
For reference, this question was surely prompted by the article:
Lobster vs Crab – Which is Healthier?
Take care!
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Topping Up Testosterone?
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The Testosterone Drop
Testosterone levels decline amongst men over a certain age. Exactly when depends on the individual and also how we measure it, but the age of 45 is a commonly-given waypoint for the start of this decline.
(the actual start is usually more like 20, but it’s a very small decline then, and speeds up a couple of decades later)
This has been called “the male menopause”, or “the andropause”.
Both terms are a little misleading, but for lack of a better term, “andropause” is perhaps not terrible.
Why “the male menopause” is misleading:
To call it “the male menopause” suggests that this is when men’s menstruation stops. Which for cis men at the very least, is simply not a thing they ever had in the first place, to stop (and for trans men it’s complicated, depending on age, hormones, surgeries, etc).
Why “the andropause” is misleading:
It’s not a pause, and unlike the menopause, it’s not even a stop. It’s just a decline. It’s more of an andro-pitter-patter-puttering-petering-out.
Is there a better clinical term?
Objectively, there is “late-onset hypogonadism” but that is unlikely to be taken up for cultural reasons—people stigmatize what they see as a loss of virility.
Terms aside, what are the symptoms?
❝Andropause or late-onset hypogonadism is a common disorder which increases in prevalence with advancing age. Diagnosis of late-onset of hypogonadism is based on presence of symptoms suggestive of testosterone deficiency – prominent among them are sexual symptoms like…❞
…and there we’d like to continue the quotation, but if we list the symptoms here, it won’t get past a lot of filters because of the words used. So instead, please feel free to click through:
Source: Andropause: Current concepts
Can it be safely ignored?
If you don’t mind the sexual symptoms, then mostly, yes!
However, there are a few symptoms we can mention here that are not so subjective in their potential for harm:
- Depression
- Loss of muscle mass
- Increased body fat
Depression kills, so this does need to be taken seriously. See also:
The Mental Health First-Aid That You’ll Hopefully Never Need
(the above is a guide to managing depression, in yourself or a loved one)
Loss of muscle mass means being less robust against knocks and falls later in life
Loss of muscle mass also means weaker bones (because the body won’t make bones stronger than it thinks they need to be, so bone will follow muscle in this regard—in either direction)
See also:
- Resistance Is Useful! (Especially As We Get Older)
- Protein vs Sarcopenia
- Fall Special (How to Proof Yourself Against Falls)
Increased body fat means increased risk of diabetes and heart disease, as a general rule of thumb, amongst other problems.
Will testosterone therapy help?
That’s something to discuss with your endocrinologist, but for most men whose testosterone levels are lower than is ideal for them, then yes, taking testosterone to bring them [back] to “normal” levels can make you happier and healthier (though it’s certainly not a cure-all).
See for example:
Testosterone Therapy Improves […] and […] in Hypogonadal Men
(Sorry, we’re not trying to be clickbaity, there are just some words we can’t use without encountering software problems)
Here’s a more comprehensive study that looked at 790 men aged 65 or older, with testosterone levels below a certain level. It looked at the things we can’t mention here, as well as physical function and general vitality:
❝The increase in testosterone levels was associated with significantly increased […] activity, as assessed by the Psychosexual Daily Questionnaire (P<0.001), as well as significantly increased […] desire and […] function.
The percentage of men who had an increase of at least 50 m in the 6-minute walking distance did not differ significantly between the two study groups in the Physical Function Trial but did differ significantly when men in all three trials were included (20.5% of men who received testosterone vs. 12.6% of men who received placebo, P=0.003).
Testosterone had no significant benefit with respect to vitality, as assessed by the Functional Assessment of Chronic Illness Therapy–Fatigue scale, but men who received testosterone reported slightly better mood and lower severity of depressive symptoms than those who received placebo❞
Source: Effects of Testosterone Treatment in Older Men
We strongly recommend, by the way, when a topic is of interest to you to read the paper itself, because even the extract above contains some subjectivity, for example what is “slightly better”, and what is “no significant benefit”.
That “slightly better mood and lower severity of depressive symptoms”, for example, has a P value of 0.004 in their data, which is an order of magnitude more significant than the usual baseline for significance (P<0.05).
And furthermore, that “no significant benefit with respect to vitality” is only looking at either the primary outcome aggregated goal or the secondary FACIT score whose secondary outcome had a P value of 0.06, which just missed the cut-off for significance, and neglects to mention that all the other secondary outcome metrics for men involved in the vitality trial were very significant (ranging from P=0.04 to P=0.001)
Click here to see the results table for the vitality trial
Will it turn me into a musclebound angry ragey ‘roidmonster?
Were you that kind of person before your testosterone levels declined? If not, then no.
Testosterone therapy seeks only to return your testosterone levels to where they were, and this is done through careful monitoring and adjustment. It’d take a lot more than (responsible) endocrinologist-guided hormonal therapy to turn you into Marvel’s “Wolverine”.
Is testosterone therapy safe?
A question to take to your endocrinologist because everyone’s physiology is different, but a lot of studies do support its general safety for most people who are prescribed it.
As with anything, there are risks to be aware of, though. Perhaps the most critical risk is prostate cancer, and…
❝In a large meta-analysis of 18 prospective studies that included over 3500 men, there was no association between serum androgen levels and the risk of prostate cancer development
For men with untreated prostate cancer on active surveillance, TRT remains controversial. However, several studies have shown that TRT is not associated with progression of prostate cancer as evidenced by either PSA progression or gleason grade upstaging on repeat biopsy.
Men on TRT should have frequent PSA monitoring; any major change in PSA (>1 ng/mL) within the first 3-6 months may reflect the presence of a pre-existing cancer and warrants cessation of therapy❞
Those are some select extracts, but any of this may apply to you or your loved one, we recommend to read in full about this and other risks:
Risks of testosterone replacement therapy in men
See also: Prostate Health: What You Should Know
Beyond that… If you are prone to baldness, then taking testosterone will increase that tendency. If that’s a problem for you, then it’s something to know about. There are other things you can take/use for that in turn, so maybe we’ll do a feature on those one of these days!
For now, take care!
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Eat to Beat Your Diet – by Dr. William Li
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We previously reviewed Dr. Li’s excellent “Eat To Beat Disease”, so you may be wondering how much overlap there is. While he does still cover such topics as angiogenesis, organ regeneration, microbiome health, DNA protection, and immunological considerations, and much of the dietary advice is similar, most of the explanation is different.
Because, this time, rather than looking at beating disease in general, there’s a much stronger focus on metabolic disease in particular, and yes, for those who want to do so, losing fat.
The scientific explanations are in-depth, such that you come way with not merely “I should eat an avocado once in a while”, but a comprehensive understanding of the body’s metabolic processes, from the chemistry to the organs involved, from the cellular to the systemic.
The style is on the hard end of pop-science. It’s approachably readable, while having a lot of densely-packed information with minimal fluff. You will be more than getting your money’s worth out of its 496 pages.
Bottom line: if you’d like to perk up your metabolism with a dietary approach that’s enjoyable and very restrictive, then this book will arm you with the knowledge to do that.
Click here to check out Eat To Beat Your Diet, and eat to beat your diet!
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Where to Get Turmeric?
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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 liked the info on Turmeric. The problem for me is that I do not like black pepper which should be ingested with the turmeric for best results. Is black pepper sold in capsule form?”
Better than just black pepper being sold in capsule form, it’s usually available in the same capsules as the turmeric. As in: if you buy turmeric capsules, there is often black pepper in them as well, for precisely that reason. Check labels, of course, but here’s an example on Amazon.
“I would like to read more on loneliness, meetup group’s for seniors. Thank you”
Well, 10almonds is an international newsletter, so it’s hard for us to advise about (necessarily: local) meetup groups!
But a very popular resource for connecting to your local community is Nextdoor, which operates throughout the US, Canada, Australia, and large parts of Europe including the UK.
In their own words:
Get the most out of your neighborhood with Nextdoor
It’s where communities come together to greet newcomers, exchange recommendations, and read the latest local news. Where neighbors support local businesses and get updates from public agencies. Where neighbors borrow tools and sell couches. It’s how to get the most out of everything nearby. Welcome, neighbor.
Curious? Click here to check it out and see if it’s of interest to you
“It was superb !! Just loved that healthy recipe !!! I would love to see one of those every day, if possible !! Keep up the fabulous work !!!”
We’re glad you enjoyed! We can’t promise a recipe every day, but here’s one just for you:
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Fasting Without Crashing?
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Intermittent Fasting: What’s the truth?
Before we get to facts and fictions, let’s quickly cover:
What is Intermittent Fasting?
Intermittent Fasting (IF) is an umbrella term for various kinds of time-restricted fasting, based on a schedule. Types include:
Time-restricted IF, for example:
- 16:8—Fast for 16 hours, eat during an 8-hour window
- 18:6–Fast for 18 hours, eat during a 6-hour window
- 20:4—Fast for 20 hours, eat during a 4-hour window
24hr fasting, including:
- Eat Stop Eat—basically, take a day off from eating once a week
- Alternate Day Fasting—a more extreme version of the above; it is what it sounds like; eat one day, fast the next, repeat
Non-fast fasting, e.g:
- 5:2—Eat normally for 5 days, have a very reduced calorie intake (⅓ of normal intake) for the other 2 days
- Fruit Fasting—have a small amount of fruit on “fast” days, but no other food
- The Warrior Diet—as above, but include a small amount of non-starchy vegetables
Why IF?
While IF is perhaps most commonly undertaken as a means of fat loss or fat management (i.e., keeping fat down when it is already low), others cite different reasons, such as short term cognitive performance or long-term longevity.
But… Does it work?
Here we get into the myth-busting bit!
“IF promotes weight loss”
Mix of True and False. It can! But it also doesn’t have to. If you’re a bodybuilder who downs 4,000 calories in your 4hr eating window, you’re probably not going to lose weight! For such people, this is of course “a feature, not a bug” of IF—especially as it has been found that, in an acute study, IF did not adversely impact muscle protein synthesis.
“IF promotes fat loss, without eating less”
Broadly True. IF was found to be potentially equal to, but not necessarily better than, eating less.
“IF provides metabolic benefits for general health”
Broadly True. IF (perhaps counterintuitively) decreases the risk of insulin resistance, and also has anti-inflammatory effects, benefits a healthy gut microbiome, and promotes healthy autophagy (which as we noted in a previous edition of 10almonds, is important against both aging and cancer)
However, results vary according to which protocol you’re observing…
For what it’s worth, 16:8 is perhaps the most-studied protocol. Because such studies tend to have the eating window from midday to 8pm, this means that—going against popular wisdom—part of the advice here is basically “skip breakfast”.
“Unlike caloric restriction, IF is sustainable and healthy as a long-term protocol”
Broadly True. Of course, there’s a slight loophole here in that IF is loosely defined—technically everyone fasts while they’re sleeping, at the very least!
However, for the most commonly-studied IF method (16:8), this is generally very sustainable and healthy and for most people.
On the other hand, a more extreme method such as Alternate Day Fasting, may be trickier to sustain (even if it remains healthy to do so), because it’s been found that hunger does not decrease on fasting days—ie, the body does not “get used to it”.
The American Journal of Clinical Nutrition wrote:
❝Alternate-day fasting was feasible in nonobese subjects, and fat oxidation increased. However, hunger on fasting days did not decrease, perhaps indicating the unlikelihood of continuing this diet for extended periods of time. Adding one small meal on a fasting day may make this approach to dietary restriction more acceptable.❞
“IF improves mood and cognition”
Mix of True and False (plus an honest “We Don’t Know” from researchers).
Many studies have found benefits to both mood and cognition, but in the short-term, fasting can make people “hangry” (or: “experience irritability due to low blood sugar levels”, as the scientists put it), and in the long term, it can worsen symptoms of depression for those who already experience such—although some studies have found it can help alleviate depressive symptoms.
Basically this is one where researchers typically append the words “more research is needed” to their summaries.
“Anyone can do IF”
Definitely False, unless going by the absolute broadest possible interpretation of what constitutes “Intermittent Fasting” to the point of disingenuity.
For example, if you are Type 1 Diabetic, and your blood sugars are hypo, and you wait until tomorrow to correct that, you will stand a good chance of going into a coma instead. So please don’t.
(On the other hand, IF may help achieve remission of type 2 diabetes)
Lastly, IF is broadly not recommend to children and adolescents, anyone pregnant or breastfeeding, and certain underlying health conditions not mentioned above (we’re not going to try to give an exhaustive list here, but basically, if you have a chronic health condition, we recommend you check with your doctor first).
WHICH APP?
Choosing a fasting app
Thinking of giving IF a try and would like a little extra help? We’ve got you covered!
Check out: Livewire’s 7 Best Intermittent Fasting Apps of 2023
Prefer to just trust us with a recommendation?
We like BodyFast—it’s #2 on Lifewire’s list, but it has an array of pre-set plans to choose from (unlike Lifewire’s #1, Zero), and plenty of clear tracking, scheduling help, and motivational features.
Both are available on both iOS and Android:
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Stop Pain Spreading
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Put Your Back Into It (Or Don’t)!
We’ve written before about Managing Chronic Pain (Realistically!), and today we’re going to tackle a particular aspect of chronic pain management.
- It’s a thing where the advice is going to be “don’t do this”
- And if you have chronic pain, you will probably respond “yep, I do that”
However, it’s definitely a case of “when knowing isn’t the problem”, or at the very least, it’s not the whole problem.
Stop overcompensating and address the thing directly
We all do it, whether in chronic pain, or just a transient injury. But we all need to do less of it, because it causes a lot of harm.
Example: you have pain in your right knee, so you sit, stand, walk slightly differently to try to ease that pain. It works, albeit marginally, at least for a while, but now you also have pain in your left hip and your lumbar vertebrae, because of how you leaned a certain way. You adjust how you sit, stand, walk, to try to ease both sets of pain, and before you know it, now your neck also hurts, you have a headache, and you’re sure your digestion isn’t doing what it should and you feel dizzy when you stand. The process continues, and before long, what started off as a pain in one knee has now turned your whole body into a twisted aching wreck.
What has happened: the overcompensation due to the original pain has unduly stressed a connected part of the body, which we then overcompensate for somewhere else, bringing down the whole body like a set of dominoes.
For more on this: Understanding How Pain Can Spread
“Ok, but how? I can’t walk normally on that knee!”
We’re keeping the knee as an example here, but please bear in mind it could be any chronic pain and resultant disability.
Note: if you found the word “disability” offputting, please remember: if it adversely affects your abilities, it is a disability. Disabilities are not something that only happen to other people! They will happen to most of us at some point!
Ask yourself: what can you do, and what can’t you do?
For example:
- maybe you can walk, but not normally
- maybe you can walk normally, but not without great pain
- maybe you can walk normally, but not at your usual walking pace
First challenge: accept your limitations. If you can’t walk at your usual walking pace without great pain and/or throwing your posture to the dogs, then walk more slowly. To Hell with societal expectations that it shouldn’t take so long to walk from A to B. Take the time you need.
Second challenge: accept help. It doesn’t have to be help from another person (although it could be). It might be accepting the help of a cane, or maybe even a wheelchair for “flare-up” days. Society, especially American society which is built on ideas of self-sufficiency, has framed a lot of such options as “giving up”, but if they help you get about your day while minimizing doing further harm to your body, then they can be good and even health-preserving things. Same goes for painkillers if they help you from doing more harm to your body by balling up tension in a part of your body in a way that ends up spreading out and laying ruin to your whole body.
Speaking of which:
How Much Does It Hurt? Get The Right Help For Your Pain
After which, you might want to check out:
The 7 Approaches To Pain Management
and
Science-Based Alternative Pain Relief
Third challenge: deserves its own section, so…
Do what you can
If you have chronic pain (or any chronic illness, really), you are probably fed up of hearing how this latest diet will fix you, or yoga will fix you, and so on. But, while these things may not be miracle cures…
- A generally better diet really will lessen symptoms and avoid flare-ups (a low-inflammation diet is a great start for lessening the symptoms of a lot of chronic illnesses)
- Doing what exercise you can, being mindful of your limitations yes but still keeping moving as much as possible, will also prevent (or at least slow) deterioration. Consider consulting a physiotherapist for guidance (a doctor will more likely just say “rest, take it easy”, whereas a physiotherapist will be able to give more practical advice).
- Getting good sleep may be a nightmare in the case of chronic pain (or other chronic illnesses! Here’s to those late night hyperglycemia incidents for Type 1 Diabetics that then need monitoring for the next few hours while taking insulin and hoping it goes back down) but whatever you can do to prioritize it, do it.
Want to read more?
We reviewed a little while ago a great book about this; the title sounds like a lot of woo, but we promise the content is extremely well-referenced science:
…and if your issue is back pain specifically, we highly recommend:
Healing Back Pain: The Mind-Body Connection – by Dr. John Sarno
Take care!
Don’t Forget…
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How light can shift your mood and mental health
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This is the next article in our ‘Light and health’ series, where we look at how light affects our physical and mental health in sometimes surprising ways. Read other articles in the series.
It’s spring and you’ve probably noticed a change in when the Sun rises and sets. But have you also noticed a change in your mood?
We’ve known for a while that light plays a role in our wellbeing. Many of us tend to feel more positive when spring returns.
But for others, big changes in light, such as at the start of spring, can be tough. And for many, bright light at night can be a problem. Here’s what’s going on.
llaszlo/Shutterstock An ancient rhythm of light and mood
In an earlier article in our series, we learned that light shining on the back of the eye sends “timing signals” to the brain and the master clock of the circadian system. This clock coordinates our daily (circadian) rhythms.
“Clock genes” also regulate circadian rhythms. These genes control the timing of when many other genes turn on and off during the 24-hour, light-dark cycle.
But how is this all linked with our mood and mental health?
Circadian rhythms can be disrupted. This can happen if there are problems with how the body clock develops or functions, or if someone is routinely exposed to bright light at night.
When circadian disruption happens, it increases the risk of certain mental disorders. These include bipolar disorder and atypical depression (a type of depression when someone is extra sleepy and has problems with their energy and metabolism).
Light on the brain
Light may also affect circuits in the brain that control mood, as animal studies show.
There’s evidence this happens in humans. A brain-imaging study showed exposure to bright light in the daytime while inside the scanner changed the activity of a brain region involved in mood and alertness.
Another brain-imaging study found a link between daily exposure to sunlight and how the neurotransmitter (or chemical messenger) serotonin binds to receptors in the brain. We see alterations in serotonin binding in several mental disorders, including depression.
Our mood can lift in sunlight for a number of reasons, related to our genes, brain and hormones. New Africa/Shutterstock What happens when the seasons change?
Light can also affect mood and mental health as the seasons change. During autumn and winter, symptoms such as low mood and fatigue can develop. But often, once spring and summer come round, these symptoms go away. This is called “seasonality” or, when severe, “seasonal affective disorder”.
What is less well known is that for other people, the change to spring and summer (when there is more light) can also come with a change in mood and mental health. Some people experience increases in energy and the drive to be active. This is positive for some but can be seriously destabilising for others. This too is an example of seasonality.
Most people aren’t very seasonal. But for those who are, seasonality has a genetic component. Relatives of people with seasonal affective disorder are more likely to also experience seasonality.
Seasonality is also more common in conditions such as bipolar disorder. For many people with such conditions, the shift into shorter day-lengths during winter can trigger a depressive episode.
Counterintuitively, the longer day-lengths in spring and summer can also destabilise people with bipolar disorder into an “activated” state where energy and activity are in overdrive, and symptoms are harder to manage. So, seasonality can be serious.
Alexis Hutcheon, who experiences seasonality and helped write this article, told us:
[…] the season change is like preparing for battle – I never know what’s coming, and I rarely come out unscathed. I’ve experienced both hypomanic and depressive episodes triggered by the season change, but regardless of whether I’m on the ‘up’ or the ‘down’, the one constant is that I can’t sleep. To manage, I try to stick to a strict routine, tweak medication, maximise my exposure to light, and always stay tuned in to those subtle shifts in mood. It’s a time of heightened awareness and trying to stay one step ahead.
So what’s going on in the brain?
One explanation for what’s going on in the brain when mental health fluctuates with the change in seasons relates to the neurotransmitters serotonin and dopamine.
Serotonin helps regulate mood and is the target of many antidepressants. There is some evidence of seasonal changes in serotonin levels, potentially being lower in winter.
Dopamine is a neurotransmitter involved in reward, motivation and movement, and is also a target of some antidepressants. Levels of dopamine may also change with the seasons.
But the neuroscience of seasonality is a developing area and more research is needed to know what’s going on in the brain.
How about bright light at night?
We know exposure to bright light at night (for instance, if someone is up all night) can disturb someone’s circadian rhythms.
This type of circadian rhythm disturbance is associated with higher rates of symptoms including self-harm, depressive and anxiety symptoms, and lower wellbeing. It is also associated with higher rates of mental disorders, such as major depression, bipolar disorder, psychotic disorders and post-traumatic stress disorder (or PTSD).
Why is this? Bright light at night confuses and destabilises the body clock. It disrupts the rhythmic regulation of mood, cognition, appetite, metabolism and many other mental processes.
But people differ hugely in their sensitivity to light. While still a hypothesis, people who are most sensitive to light may be the most vulnerable to body clock disturbances caused by bright light at night, which then leads to a higher risk of mental health problems.
Bright light at night disrupts your body clock, putting you at greater risk of mental health issues. Ollyy/Shutterstock Where to from here?
Learning about light will help people better manage their mental health conditions.
By encouraging people to better align their lives to the light-dark cycle (to stabilise their body clock) we may also help prevent conditions such as depression and bipolar disorder emerging in the first place.
Healthy light behaviours – avoiding light at night and seeking light during the day – are good for everyone. But they might be especially helpful for people at risk of mental health problems. These include people with a family history of mental health problems or people who are night owls (late sleepers and late risers), who are more at risk of body clock disturbances.
Alexis Hutcheon has lived experience of a mental health condition and helped write this article.
If this article has raised issues for you, or if you’re concerned about someone you know, call Lifeline on 13 11 14.
Jacob Crouse, Research Fellow in Youth Mental Health, Brain and Mind Centre, University of Sydney; Emiliana Tonini, Postdoctoral Research Fellow, Brain and Mind Centre, University of Sydney, and Ian Hickie, Co-Director, Health and Policy, Brain and Mind Centre, University of Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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