7 things you can do if you think you sweat too much
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Sweating is our body’s way of cooling down, a bit like an internal air conditioner.
When our core temperature rises (because it’s hot outside, or you’re exercising), sweat glands all over our skin release a watery fluid. As that fluid evaporates, it takes heat with it, keeping us from overheating.
But sweating can vary from person to person. Some people might just get a little dewy under the arms, others feel like they could fill a swimming pool (maybe not that dramatic, but you get the idea).
So what’s a normal amount of sweat? And what’s too much?
Why do some people sweat more than others?
How much you sweat depends on a number of factors including:
- your age (young kids generally sweat less than adults)
- your sex (men tend to sweat more than women)
- how active you are.
The average person sweats at the rate of 300 millilitres per hour (at 30°C and about 40% humidity). But as you can’t go around measuring the volume of your own sweat (or weighing it), doctors use another measure to gauge the impact of sweating.
They ask whether sweating interferes with your daily life. Maybe you stop wearing certain clothes because of the sweat stains, or feel embarrassed so don’t go to social events or work.
If so, this is a medical condition called hyperhidrosis, which affects millions of people worldwide.
People with this condition most commonly report problematic armpit sweating, as you’d expect. But sweaty hands, feet, scalp and groin can also be an issue.
Hyperhidrosis can be a symptom of another medical condition, such as an overactive thyroid, fever or menopause.
But hyperhidrosis can have no obvious cause, and the reasons behind this so-called primary hyperhidrosis are a bit of a mystery. People have normal numbers of sweat glands but researchers think they simply over-produce sweat after triggers such as stress, heat, exercise, tobacco, alcohol and hot spices. There may also be a genetic link.
OK, I sweat a lot. What can I do?
1. Antiperspirants
Antiperspirants, particularly ones with aluminium, are your first line of defence and are formulated to reduce sweating. Deodorants only stop body odour.
Aluminum chloride hexahydrate, aluminium chloride or the weaker aluminum zirconium tetrachlorohydrex glycinate react with proteins in the sweat glands, forming a plug. This plug temporarily blocks the sweat ducts, reducing the amount of sweat reaching the skin’s surface.
These products can contain up to 25% aluminium. The higher the percentage the better these products work, but the more they irritate the skin.
2. Beat the heat
This might seem obvious, but staying cool can make a big difference. That’s because you have less heat to lose, so the body makes less sweat.
Avoid super-hot, long showers (you will have more heat to loose), wear loose-fitting clothes made from breathable fabrics such as cotton (this allows any sweat you do produce to evaporate more readily), and carry a little hand fan to help your sweat evaporate.
When exercising try ice bandanas (ice wrapped in a scarf or cloth, then applied to the body) or wet towels. You can wear these around the neck, head, or wrists to reduce your body temperature.
Try also to modify the time or place you exercise; try to find cool shade or air-conditioned areas when possible.
If you have tried these first two steps and your sweating is still affecting your life, talk to your doctor. They can help you figure out the best way to manage it.
3. Medication
Some medications can help regulate your sweating. Unfortunately some can also give you side effects such as a dry mouth, blurred vision, stomach pain or constipation. So talk to your doctor about what’s best for you.
Your GP may also refer you to a dermatologist – a doctor like myself who specialises in skin conditions – who might recommend different treatments, including some of the following.
4. Botulinum toxin injections
Botulinum toxin injections are not just used for cosmetic reasons. They have many applications in medicine, including blocking the nerves that control the sweat glands. They do this for many months.
A dermatologist usually gives the injections. But they’re only subsidised by Medicare in Australia for the armpits and if you have primary hyperhidrosis that hasn’t been controlled by the strongest antiperspirants. These injections are given up to three times a year. It is not subsidised for other conditions, such as an overactive thyroid or for other areas such as the face or hands.
If you don’t qualify, you can have these injections privately, but it will cost you hundreds of dollars per treatment, which can last up to six months.
5. Iontophoresis
This involves using a device that passes a weak electrical current through water to the skin to reducing sweating in the hands, feet or armpits. Scientists aren’t sure exactly how it works.
But this is the only way to control sweating of the hands and feet that does not require drugs, surgery or botulinum toxin injections.
This treatment is not subsidised by Medicare and not all dermatologists provide it. However, you can buy and use your own device, which tends to be cheaper than accessing it privately. You can ask your dermatologist if this is the right option for you.
6. Surgery
There is a procedure to cut certain nerves to the hands that stop them sweating. This is highly effective but can cause sweating to occur elsewhere.
There are also other surgical options, which you can discuss with your doctor.
7. Microwave therapy
This is a newer treatment that zaps your sweat glands to destroy them so they can’t work any more. It’s not super common yet, and it is quite painful. It’s available privately in a few centres.
Michael Freeman, Associate Professor of Dermatology, Bond University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Lyme Disease At-A-Glance
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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
❝Good info as always…was wondering if you have any recommendations for fighting Lyme disease naturally along wDr advice? Dr’s aren’t real keen on alternatives so always interested. Thanks❞
That depends on whether we’re looking at prevention or cure!
Prevention:
- Try not to get bitten by Lyme-disease-carrying ticks. Boots and long socks are your friends. As are long-gauntletted gloves for gardening.
- If you are in a high-risk area and/or engage in high-risk activities, check your body daily.
- This is because it usually takes 36–48 hours of being attached for a tick to cause an infection
- Obviously best if you can get a partner or close friend to help you with this, unless you have mastered some advanced pretzel positions of yoga.
- Contrary to many folk remedies, the safest way to remove a tick is with tweezers (carefully!).
- If you find and remove a tick, or otherwise suspect you have developed symptoms, go to your doctor immediately (not next week; today; time really counts for this).
Cure:
- No. Sorry. Regretfully, antibiotics are the only known effective treatment.
However! As with almost any kind of recovery, getting good rest, including good quality sleep, will hasten things. Also sensible is reducing stress if possible, and anything that could worsen inflammation.
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Is fluoride really linked to lower IQ, as a recent study suggested? Here’s why you shouldn’t worry
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Fluoride is a common natural element found in water, soil, rocks and food. For the past several decades, fluoride has also been a cornerstone of dentistry and public health, owing to its ability to protect against tooth decay.
Water fluoridation is a population-based program where a precise, small amount of fluoride is added to public drinking water systems. Water fluoridation began in Australia in the 1950s. Today more than 90% of Australia’s population has access to fluoridated tap water.
But a recently published review found higher fluoride exposure is linked to lower intelligence quotient (IQ) in children. So how can we interpret the results?
Much of the data analysed in this review is poor quality. Overall, the findings don’t give us reason to be concerned about the fluoride levels in our water supplies.
TinnaPong/Shutterstock Not a new controversy
Tooth decay (also known as caries or cavities) can have negative effects on dental health, overall health and quality of life. Fluoride strengthens our teeth, making them more resistant to decay. There is scientific consensus water fluoridation is a safe, effective and equitable way to improve oral health.
Nonetheless, water fluoridation has historically been somewhat controversial.
A potential link between fluoride and IQ (and cognitive function more broadly) has been a contentious topic for more than a decade. This started with reports from studies in China and India.
But it’s important to note these studies were limited by poor methodology, and water in these countries had high levels of natural fluoride when the studies were conducted – many times higher than the levels recommended for water fluoridation programs. Also, the studies did not control for other contaminants in the water supply.
Recent reviews focusing on the level of fluoride used in water fluoridation have concluded fluoride is not linked to lower IQ.
Despite this, some have continued to raise concerns. The United States National Toxicology Program conducted a review of the potential link. However, this review did not pass the quality assessment by the US National Academies of Sciences, Engineering and Medicine due to significant limitations in the conduct of the review.
The authors followed through with their study and published it as an independent publication in the journal JAMA Paediatrics last week. This is the study which has been generating media attention in recent days.
What the study did
This study was a systematic review and meta-analysis, where the researchers evaluated 74 studies from different parts of the world.
A total of 52 studies were rated as having a high risk of bias, and 64 were cross-sectional studies, which often can’t provide evidence of causal relationship.
Most of the studies were conducted in developing countries, such as China (45), India (12), Iran (4), Mexico (4) and Pakistan (2). Only a few studies were conducted in developed countries with established public water systems, where regular monitoring and treatment of drinking water ensures it’s free from contaminants.
The vast majority of studies were conducted in populations with high to very high levels of natural fluoride and without water fluoridation programs, where fluoride levels are controlled within recommended levels.
The study concluded there was an inverse association between fluoride levels and IQ in children. This means those children who had a higher intake of fluoride had lower IQ scores than their counterparts.
Water fluoridation programs reduce the occurrence of cavities. Drazen Zigic/Shutterstock Limitations to consider
While this review combined many studies, there are several limitations that cast serious doubt over its conclusion. Scientists immediately raised concerns about the quality of the review, including in a linked editorial published in JAMA.
The low quality of the majority of included studies is a major concern, rendering the quality of the review equally low. Importantly, most studies were not relevant to the recommended levels of fluoride in water fluoridation programs.
Several included studies from countries with controlled public water systems (Canada, New Zealand, Taiwan) showed no negative effects. Other recent studies from comparable populations (such as Spain and Denmark) also have not shown any negative effect of fluoride on IQ, but they were not included in the meta-analysis.
For context, the review found there was no significant association with IQ when fluoride was measured at less than 1.5mg per litre in water. In Australia, the recommended levels of fluoride in public water supplies range from 0.6 to 1.1 mg/L.
Also, the primary outcome, IQ score, is difficult to collect. Most included studies varied widely on the methods used to collect IQ data and did not specify their focus on ensuring reliable and consistent IQ data. Though this is a challenge in most research on this topic, the significant variations between studies in this review raise further doubts about the combined results.
No cause for alarm
Although no Australian studies were included in the review, Australia has its own studies investigating a potential link between fluoride exposure in early childhood and child development.
I’ve been involved in population-based longitudinal studies investigating a link between fluoride and child behavioural development and executive functioning and between fluoride and IQ. The IQ data in the second study were collected by qualified, trained psychologists – and calibrated against a senior psychologist – to ensure quality and consistency. Both studies have provided strong evidence fluoride exposure in Australia does not negatively impact child development.
This new review is not a reason to be concerned about fluoride levels in Australia and other developed countries with water fluoridation programs. Fluoride remains important in maintaining the public’s dental health, particularly that of more vulnerable groups.
That said, high and uncontrolled levels of fluoride in water supplies in less developed countries warrant attention. There are programs underway in a range of countries to reduce natural fluoride to the recommended level.
Loc Do, Professor of Dental Public Health, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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The Brain Health Book – by Dr. John Randolph
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.
The author, a clinical neuropsychologist and brain health consultant, brings his professional knowledge and understanding to bear on the questions of what works, what doesn’t, and why?
In practical terms, the focus is mostly on maintaining/improving attention, memory, and executive functions. To that end, he covers what kinds of exercises to do (physical and mental!), and examines what strategies make the most difference—including the usual lifestyle considerations of course, but also more specifically than that, what to prioritize over what when it comes to daily choices.
The style is easy pop-science, with an emphasis on being directly useful to the reader, rather than giving an overabundance of citations for everything as we go along. He does, however, explain the necessary science as we go, making the book educational without being academic.
Bottom line: if you’d like to maintain/improve your brain, this book can certainly help with that, and as a bonus (unless you are already an expert) you’ll learn plenty about the brain as you go.
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Ear Today, Gone Tomorrow
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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
❝Have just had microsuction to remove wax from my ears. A not unpleasant experience but would appreciate your guidance on how best to discourage the buildup of wax in the first place.❞
Well, certainly do not prod or poke it, and that includes with cotton buds (Q-Tips, for the Americans amongst us). That pushes more down than that it extracts, and creates a denser base of wax.
There is no evidence that ear candles help, and they can cause harm.
Further reading: Experts update best practices for diagnosis and treatment of earwax (cerumen impaction)
Ear drops can help, and if you want a home-remedy edition, olive oil or almond oil can be used; these oils dissolve the wax quite quickly (in fancier words: they are cerumenolytic agents); washing with water (e.g. in the shower or bath) is then all that’s needed. However, to avoid infection, ensure you are using a high-purity oil, and get one to use just for that; don’t just grab a bottle from the kitchen.
For your convenience, here is an example of medical grade almond oil (with dropper!) on Amazon
❝Every article had relevance to me. I ❤️ whole fruit, it’s my go to treat. I use ice packs to ease my arthritic knee pain, works well. I’ve read and loved Dr Gawande’s books. Great handful of almonds today❞
While this wasn’t a question, and we don’t usually publish feedback here, I (your writer here, hi) misread that as “ice picks” in the first instance, an implement we’ve probably all wanted to use to relieve pain at some point, but certainly not recommendable! Anyway, the momentary confusion made me smile, so I thought I’d share the silly thought. Smiling is infectious, and all that… And it’s certainly good for the health!
More seriously, glad you enjoyed!
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One Cause; Countless Aches
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What Is The Cause?
Zac Cupples’ video (below) makes an appealing claim: 90% of movement issues and discomforts we experience daily come from one source: reduced joint space due to increased muscle tension.
For Cupples, this could be causing anything from knee pain to foot pain to ankle pain to hip pain to generalized joint pain to…pretty much any sort of pain.
So, why do we describe this as “appealing”?
Well, if there’s just one cause, that means there is only one thing to fix
Can This Be True?
Whilst we normally stray away from oversimplifications, we found Cupples’ example quite powerful.
Cupples defends his thesis by illustrating it with a simple wrist movement experiment: try moving your wrist in a circle with your palm open, and then do the same with your fist clenched.
Did you notice a difference?
When you clench your fist, movement (normally) becomes restricted and uncomfortable, illustrating how increased tension limits joint space.
It’s a powerful analogy for understanding our body’s mechanics.
So How Do We Fix It?
To combat issues with reduced joint space, Cupples proposes a three-step solution: reducing muscle tension, increasing range of motion in commonly limited areas, and enhancing movement efficiency. He delves into strategies for achieving these, including adopting certain positions and breathing techniques.
There are also some elements of strategic muscle engagement, but we’ll leave that to him to describe:
How was the video? If you’ve discovered any great videos yourself that you’d like to share with fellow 10almonds readers, then please do email them to us!
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Do You Know Which Supplements You Shouldn’t Take Together? (10 Pairs!)
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Dr. LeGrand Peterson wants us to get the most out of our supplements, so watch out for these…
Time to split up some pairs…
In most cases these are a matter of competing for absorption; sometimes to the detriment of both, sometimes to the detriment of one or the other, and sometimes, the problem is entirely different and they just interact in a way that could potentially cause other problems. Dr. Peterson advises as follows:
- Vitamin C and vitamin B12: taking these together can reduce the absorption of Vitamin B12, as vitamin C can overpower it.
- Vitamin C and copper: high amounts of vitamin C can decrease copper absorption, especially in those who are severely copper deficient.
- Magnesium and calcium: these two minerals compete for absorption in the intestines, potentially reducing the effectiveness of both.
- Calcium and iron: calcium can decrease iron absorption, so they should not be taken together, especially if you are iron deficient.
- Calcium and zinc: calcium also competes with zinc, reducing zinc absorption; they should be taken at different times.
- Zinc and copper: zinc and copper compete for absorption, so they should be taken at separate times.
- Iron and zinc: iron can decrease zinc absorption, and thus, they should not be taken together.
- Iron and green tea: perhaps a surprising one, but green tea can reduce iron absorption, so they should not be taken simultaneously.
- Vitamin E and vitamin K: vitamin E increases bleeding risk, while vitamin K promotes clotting, making them opposites and risky to take together.
- Fish oil and ginkgo biloba: both are anticoagulants and can increase the risk of bleeding, especially if taken with blood thinners like warfarin.
If you need to take supplements that compete (or conflict or otherwise potentially adversely interact) with each other, it’s recommended to separate them by at least 4 hours, or better yet, take one in the morning and the other at night. If in doubt, do speak with your pharmacist or doctor for personalized advice
You may be thinking: half my foods contain half of these nutrients! And yes, assuming you have a nutritionally dense diet, this is probably the case. Foods typically release nutrients more slowly than supplements, and unlike supplements, do not usually contain megadoses (although they can, such as the selenium content of Brazil nuts, or vitamin A in carrots). Basically, food is in most cases safer and gentler than supplements. If concerned, do speak with your nutritionist or doctor for personalized advice.
For more information on all of these, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Do We Need Supplements, And Do They Work?
Take care!
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