Is thunderstorm asthma becoming more common?
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When spring arrives, so do warnings about thunderstorm asthma. But a decade ago, most of us hadn’t heard of it.
So where did thunderstorm asthma come from? Is it a new phenomenon?
In 2016, the world’s most catastrophic thunderstorm asthma event took Melbourne by surprise. An increase in warnings and monitoring is partly a response to this.
But there are also signs climate change may be exacerbating the likelihood of thunderstorm asthma, with more extreme weather, extended pollen seasons and a rise in Australians reporting hay fever.
A landmark catastrophe
The first time many Australians heard of thunderstorm asthma was in November 2016, when a major event rocked Melbourne.
During a late night storm, an estimated 10,000 people were rushed to hospitals with severe asthma attacks. With thousands of calls on emergency lines, ambulances and emergency departments were unprepared to handle the rapid increase in people needing urgent medical care. Tragically, ten of those people died.
This was the most catastrophic thunderstorm asthma event in recorded history and the first time deaths have ever occurred anywhere in the world.
In response, the Victorian Department of Health implemented initiatives, including public awareness campaigns and improvements to health and emergency services, to be ready for future thunderstorm asthma events.
A network of pollen monitoring stations was also set up across the state to gather data that helps to predict future events.
A problem for decades
While this event was unexpected, it wasn’t the first time we’d had thunderstorm asthma in Australia – we’ve actually known about it for decades.
Melbourne reported its first instance of thunderstorm asthma back in 1984, only a year after this phenomenon was first discovered in Birmingham in the United Kingdom.
Thunderstorm asthma has since been reported in other parts of Australia, including Canberra and New South Wales. But it is still most common in Melbourne. Compared to any other city (or country) the gap is significant: over a quarter of all known events worldwide have occurred in Melbourne.
Why Melbourne?
Melbourne’s location makes it a hotspot for these kinds of events. Winds coming from the north of Melbourne tend to be dry and hot as they come from deserts in the centre of Australia, while winds from the south are cooler as they come from the ocean.
When hot and cool air mix above Melbourne, it creates the perfect conditions for thunderstorms to form.
Northern winds also blow a lot of pollen from farmlands into the city, in particular grass pollen. This is not only the most common cause of seasonal hay fever in Melbourne but also a major trigger of thunderstorm asthma.
Why grass pollen?
There’s a particular reason grass pollen is the main culprit behind thunderstorm asthma in Australia. During storms there is a lot of moisture in the air. Grass pollen will absorb this moisture, making it swell up like a water balloon.
If pollen absorbs too much water whilst airborne, it can burst or “rupture,” releasing hundreds of microscopic particles into the air that can be swept by powerful winds.
Normally, when you breathe in pollen it gets stuck in your upper airway – for example, your nose and throat. This is what causes typical hay fever symptoms such as sneezing or runny nose.
But the microscopic particles released from ruptured grass pollen are much smaller and don’t get stuck as easily in the upper airway. Instead, they can travel deep into your airways until they reach your lungs. This may trigger more severe symptoms, such as wheezing or difficulty breathing, even in people with no prior history of asthma.
So who is at risk?
You might think asthma is the biggest risk factor for thunderstorm asthma. In fact, the biggest risk factor is hay fever.
Up to 99% of patients who went to the emergency department during the Melbourne 2016 event had hay fever, while a majority (60%) had no prior diagnosis of asthma.
Every single person hospitalised was allergic to at least one type of grass pollen. All had a sensitivity to ryegrass.
Is thunderstorm asthma becoming more common?
Thunderstorm asthma events are rare, with just 26 events officially recorded worldwide.
However there is evidence these events could become more frequent and severe in coming years, due to climate change. Higher temperatures and pollution could be making plants produce more pollen and pollen seasons last much longer.
Extreme weather events, including thunderstorms, are also expected to become more common and severe.
In addition, there are signs rates that hay fever may be increasing. The number of Australians reporting allergy symptoms have risen from 15% in 2008 to 24% in 2022. Similar trends in other countries has been linked to climate change.
How can I prepare?
Here are three ways you can reduce your risk of thunderstorm asthma:
- stock up on allergy medication and set up an asthma action plan with your GP
- check daily pollen forecasts for the estimated pollen level and risk of a thunderstorm asthma event in your local area
- on days with high pollen or a high risk of thunderstorm asthma, spend less time outside or wear a surgical face mask to reduce your symptoms.
Kira Morgan Hughes, PhD Candidate in Allergy and Asthma, School of Life and Environmental Sciences, Deakin University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Beetroot vs Pumpkin – Which is Healthier?
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Our Verdict
When comparing beetroot to pumpkin, we picked the beetroot.
Why?
It was close! And an argument could be made for either.
In terms of macros, beetroot has about 3x more protein and about 3x more fiber, as well as about 2x more carbs, making it the “more food per food” option. While both have a low glycemic index, we picked the beetroot here for its better numbers overall.
In the category of vitamins, beetroot has more of vitamins B6 and B9, while pumpkin has more of vitamins A, B2, B3, B5, E, and K. So, a fair win for pumpkin this time.
When it comes to minerals, though, beetroot has more calcium, iron, magnesium, manganese, phosphorus, potassium, selenium, and zinc, while pumpkin has a tiny bit more copper. An easy win for beetroot here.
In short, both are great, and although pumpkin shines in the vitamin category, beetroot wins on overall nutritional density.
Want to learn more?
You might like to read:
No, beetroot isn’t vegetable Viagra. But here’s what it can do
Take care!
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The Physical Exercises That Build Your Brain
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Jim Kwik: from broken brain to brain coach
Image from Kwik Learning This is Jim Kwik. He suffered a traumatic brain injury as a small child, and later taught himself to read and write by reading comic books. He became fascinated with the process of learning, and in his late 20s he set up Kwik Learning, to teach accelerated learning in classrooms and companies, which he continued until 2009 when he launched his online learning platform. His courses have now been enjoyed by people in 195 countries.
So, since accelerated learning is his thing, you might wonder…
What does he have to share that we can benefit from in the next five minutes?
Three brain exercises to improve memory and concentration
A lot of problems we have with working memory are a case of executive dysfunction, but there are tricks we can use to get our brains into gear and make them cumulatively stronger:
First exercise
You can strengthen your corpus callosum (the little bridge between the two hemispheres of the brain) by performing a simple kinesiological exercise, such as alternating touching your left elbow to your right knee, and touching your right elbow to your left knee.
Do it for about a minute, but the goal here is not a cardio exercise, it’s accuracy!
You want to touch your elbow and opposite knee to each other as precisely as possible each time. Not missing slightly off to the side, not falling slightly short, not hitting it too hard.
Second exercise
Put your hands out in front of you, as though you’re about to type at a keyboard. Now, turn your hands palm-upwards. Now back to where they were. Now palm-upwards again. Got it? Good.
That’s not the exercise, the exercise is:
You’re now going to do the same thing, but do it twice as quickly with one hand than the other. So they’ll still be flipping to the same basic “beat”, put it in musical terms, the tempo on one hand will now be twice that of the other. When you get the hang of that, switch hands and do the other side.
This is again about the corpus callosum, but it’s now adding an extra level of challenge because of holding the two rhythms separately, which is also working the frontal lobe of the cerebral cortex.
The pre-frontal cortex in particular is incredibly important to executive function, self-discipline, and being able to “do” delayed gratification. So this exercise is really important!
Third exercise
This one works the same features of the brain, but most people find it harder. So, consider it a level-up on the previous:
Imagine there’s a bicycle wheel in front of you (as though the bike is facing you at chest-height). Turn the wheel towards you with your hands, one on each side.
Now, do the same thing, but each of your hands is going in the opposite direction. So one is turning the wheel towards you; the other is turning it away from you.
Now, do the same thing, but one hand goes twice as quickly as the other.
Switch sides.
Why is this harder for most people than the previous? Because the previous involved processing discrete (distinct from each other) movements while this one involves analog continuous movements.
It’s like reading an analog clock vs a digital clock, but while using both halves of your brain, your corpus callosum, your pre-frontal cortex, and the motor cortex too.
Want to learn more?
You might enjoy his book, which as well as offering exercises like the above, also offers a lot about learning strategies, memory processes, and generally building a quicker more efficient brain:
Limitless: Upgrade Your Brain, Learn Anything Faster, and Unlock Your Exceptional Life
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Age & Aging: What Can (And Can’t) We Do About It?
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How old do you want to be?
We asked you how old you are, and got an interesting spread of answers. This wasn’t too surprising; of course we have a general idea of who our readership is and we write accordingly.
What’s interesting is the gap for “40s”.
And, this wasn’t the case of a broken poll button, it’s something that crops up a lot in health-related sociological research. People who are most interested in taking extra care of their body are often:
- Younger people full of optimism about maintaining this perfectly healthy body forever
- Older people realizing “if I don’t want to suffer avoidable parts of age-related decline, now is the time to address these things”
In between, we often have a gap whereby people no longer have the optimism of youth, but do not yet feel the pressure of older age.
Which is not to say there aren’t 40-somethings who do care! Indeed, we know for a fact we have some subscribers in their 40s (and some in their 90s, too), just, they evidently didn’t vote in this poll.
Anyway, let’s bust some myths…
Aging is inevitable: True or False?
False, probably. That seems like a bold (and fortune-telling) claim, so let’s flip it to deconstruct it more logically:
Aging is, and always will be, unstoppable: True or False?
That has to be “False, probably”. To say “true” now sounds like an even bolder claim. Just like “the moon will always be out of reach”.
- When CPR was first developed, first-aiders were arrested for “interfering with a corpse”.
- Many diseases used to be death sentences that are now “take one of these in the morning”
- If you think this is an appeal to distant history, HIV+ status was a death sentence in the 90s. Now it’s “take one of these in the morning”.
But, this is an appeal to the past, and that’s not always a guarantee of the future. Where does the science stand currently? How is the research and development doing on slowing, halting, reversing aging?
We can slow aging: True or False?
True! There’s a difference between chronological age (i.e., how much time has passed while we’ve been alive) and biological age (i.e., what our diverse markers of aging look like).
Biological age often gets talked about as a simplified number, but it’s more complex than that, as we can age in different ways at different rates, for example:
- Visual markers of aging (e.g. wrinkles, graying hair)
- Performative markers of aging (e.g. mobility tests)
- Internal functional markers of aging (e.g. tests for cognitive decline, eyesight, hearing, etc)
- Cellular markers or aging (e.g. telomere length)
- …and more, but we only have so much room here
There are things we can do to slow most of those, including:
- Good nutrition (e.g. collagen and lutein, to keep specific parts of the body functioning “like those of a younger person” ranging from the joints to the eyes and brain)
- Anti-oxidant activity (e.g. eating anti-oxidant foods, supplementing with anti-oxidants or other things that mitigate oxidative stress, and avoiding foods that hasten oxidative stress which causes many kinds of aging)
- Getting good sleep (not to be underestimated for its restorative importance)
- Taking care of our cognitive health
- Taking care of our mental health (especially: reducing stress)
- Taking care of our mobility (prevention is better than cure!)
In the case of cognitive decline particularly, check out our previous article:
How To Reduce Your Alzheimer’s Risk
It’s too early to worry about… / It’s too late to do anything about… True or False?
False and False!
Many things that affect our health later in life are based on early-life choices and events. So it’s important for young people to take advantage of that. The earlier one adopts a healthy lifestyle, the better, because, and hold onto your hats for the shocker here: aging is cumulative.
However, that doesn’t mean that taking up healthy practices (or dropping unhealthy ones) is pointless later in life, even in one’s 70s and beyond!
Read about this and more from the National Institute of Aging:
What Do We Know About Healthy Aging?
We can halt aging: True or False?
False, for now at least. Our bodies are not statues; they are living organisms, constantly rebuilding themselves, constantly changing, every second of every day, for better or for worse. Every healthy or unhealthy choice you make, every beneficial or adverse experience you encounter, affects your body on a cellular level.
Your body never, ever, stops changing for as long as you live.
But…
We can reverse aging: True or False?
True! Contingently and with limitations, for now at least.
Remember what we said about your body constantly rebuilding itself? That goes for making itself better as well as making itself worse.
- If yesterday you couldn’t touch your toes and today you can, congratulations, you just got younger by a biological marker of aging.
- If you stopped drinking/smoking/eating a certain way last year, and this year your skin has fewer wrinkles, congratulations, you got younger by a biological marker of aging.
- If you’ve been exercising and now your heart rate variability and VO2 max are better than last month, congratulations, you got younger by a biological marker aging.
- If you took supplements that reduce and/or mitigate oxidative stress (e.g. resveratrol, CoQ10, l-theanine, etc), and you took up intermittent fasting, and now your telomeres are longer than they were six months ago, congratulations, you got younger by a biological marker of aging.
But those aren’t really being younger, we’ll still die when our time is up: True or False?
False and True, respectively.
Those kinds of things are really being younger, biologically. What else do you think being biologically younger is?
We may indeed die when our time is up, but (unless we suffer fatal accident or incident first) “when our time is up” is something that is decided mostly by the above factors.
Genetics—the closest thing we have to biological “fate”—accounts for only about 25% of our longevity-related health*.
Genes predispose, but they don’t predetermine.
*Read more: Human longevity: Genetics or Lifestyle? It takes two to tango
(from the Journal of Immunity and Ageing)
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Sauerkraut vs Pickled Cucumber – Which is Healthier?
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.
Our Verdict
When comparing sauerkraut to pickled cucumber, we picked the sauerkraut.
Why?
Both of these fermented foods can give a gut-healthy microbiome boost, but how do they stack up otherwise?
In terms of macros, sauerkraut has more protein, carbs, and fiber. They are both low glycemic index foods, so we’ll go with the one that has more fiber out of the two, and that’s the ‘kraut.
In the category of vitamins, sauerkraut has more of vitamins B1, B2, B3, B5, B6, B7, B9, C, E, and choline, while pickled cucumbers have more of vitamins A and K. An easy win for sauerkraut.
When it comes to minerals, sauerkraut has more calcium, copper, iron, magnesium, manganese, phosphorus, potassium, selenium, and zinc, while pickled cucumbers are not higher in any mineral, except sodium (on average, pickled cucumbers have about 2x the sodium of sauerkraut). Another clear win for sauerkraut.
In short, enjoy either or both in moderation, but it’s clear which boasts the most nutritional benefits, and that’s the sauerkraut!
Want to learn more?
You might like to read:
Make Friends With Your Gut (You Can Thank Us Later)
Take care!
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Lower Your Cortisol! (Here’s Why & How)
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Cortisol, or “the stress hormone” to its friends, is produced by your adrenal glands, and is generally considered “not fun”.
It does serve a purpose, of course, just like almost everything else our body does. It serves as part of the “fight or flight” response, for example, and helps you to wake up in the morning.
While you do need some cortisol (and a small percentage of people have too little), most of us have too much.
Why? Simply put, modern life is not what 200,000* years of human evolution prepared us for:
- Agriculture (which allowed us to settle down and cease being nomadic) happened during the last 6% of those 200,000 years.
- The Industrial Revolution and the onset of modern capitalism happened during only during the last 0.1% of those 200,000 years.
*the 200,000 years figure is conservative and doesn’t take into account the 200,000,000 years of pre-hominid mammalian evolution. Doing so, on the basis of the mammalian brain & physiology being what’s important here, means our modern stressors have been around for <0.0001% of the time we have.
So guess what, our bodies haven’t caught up. As far as our bodies are concerned, we are supposed to be enjoying the sunshine of grassy plains and the shade of woodland while eating fruit.
- When the alarm clock goes off, our body panics and prepares us to either flee or help fight the predator, because why else would we have been woken so?
- When we have a pressing deadline for work, our brain processes this as “if we don’t do this, we will literally starve and die”.
- When people are upset or angry with us, there’s a part of our brain that fears exile from the tribe and resultant death.
…and so on.
Health Risks of High Cortisol
The long-term stressors are the biggest issue for health. Unless you have a heart condition or other relevant health problem, almost anyone can weather a brief unpleasant surprise. But if something persists? That prompts the body to try to protect you, bless it. The body’s attempts backfire, because…
- One way it does this by making sure to save as much food as possible in the form of body fat
- It’ll also increase your appetite, to make sure you eat anything you can while you still can
- It additionally tries to protect you by keeping you on the brink of fight-or-flight readiness, e.g:
- High blood pressure
- High blood sugar levels
- Rapid mood changes—gotta be able to do those heel-turns as necessary and react quickly to any possible threat!
Suffice it to say, these things are not good for your long-term health.
That’s the “Why”—now here’s the “How”:
Lowering your cortisol levels mostly means lowering your stress and/or lowering your stress response. We previously gave some powerful tools for lowering anxiety, which for these purposes amounts to the same thing.
However, we can also make nutritional and lifestyle changes that will reduce our cortisol levels, for example:
- Reduce (ideally: eliminate from your lifestyle) caffeine
- Reduce (ideally: eliminate from your lifestyle) alcohol
- Yes, really. While many understandably turn to alcohol specifically to help manage stress, it only makes it worse long-term.
- Additionally, alcohol directly stimulates cortisol production, counterintuitive as that may be.
Read: Alcohol, Aging, and the Stress Response ← full article (with 37 sources of its own) from the NYMC covering how alcohol stimulates cortisol production and what that means for us
As well as reductions/eliminations, are some things you can add into your lifestyle that will help!
We’ve written previously about some:
Read: Ashwagandha / Read: L-Theanine / Read: CBD Oil
Other things include, no surprises here:
- The Mediterranean diet (nutritious and delicious): https://10almonds.com/mediterranean-diet
- Get 7–9 hours (good quality!) sleep per night: https://10almonds.com/time-pillow-talk
- Get regular exercise (the regularity matters most!): https://10almonds.com/keep-on-keeping-on
Progressive Relaxation
We’ll give this one its own section because we’ve not talked about it before. Maybe you’re familiar. If not, then in a nutshell: progressive relaxation means progressively tensing and then relaxing each part of your body in turn.
Why does this work? Part of it is just a physical trick involving biofeedback and the natural function of muscles to contract and relax in turn, but the other part is even cleverer:
It basically tricks the most primitive part of your brain, the limbic system, into thinking you had a fight and won, telling it “thank you very much for the cortisol but we don’t need it anymore”.
Take a Hike! Or a Stroll… You Do You!
Last but not least: go connect with your roots. Spend time in the park, or at least the garden. Have a picnic, if the weather suits. Go somewhere you can spend time around leafy green things under a blue sky (we realize the blue sky may be subject to availability in some locations, but do what you can!).
Remember also: just as your body’s responses will be tricked by the alarm clock or the housework, they will also be easily tricked by blue and green stuff around you. If a sunny garden isn’t available in your location, a picture of one as your desktop background is the next best thing.
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What Loneliness Does To Your Brain And Body
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.
Spoiler: it’s nothing good (but it can be addressed!)
Not something to be ignored
Loneliness raises the risk of heart disease by 29% and the risk of stroke by 32%. It also brings about higher susceptibility to illness (flu, COVID, chronic pain, etc), as well as poor sleep quality and cognitive decline, possibly leading to dementia. Not only that, but it also promotes inflammation, and premature death (comparable to smoking).
This is because the lack of meaningful social connections activates the body’s stress response, which in turn increases paranoia, suspicion, and social withdrawal—which makes it harder to seek the social interaction needed to alleviate it.
On a neurological level, cortisol levels become imbalanced, and a faltering dopamine response leads to impulsive behaviors (e.g., drinking, gambling) to try to make up for it. Decreased serotonin, oxytocin, and natural opioids reduce feelings of happiness and negate pain relief.
As for combatting it, the first-line remedy is the obvious one: connecting with others improves emotional and physical wellbeing. However, it is recommended to aim for deep, meaningful connections that make you happy rather than just socializing for its own sake. It’s perfectly possible to be lonely in a crowd, after all.
A second-line remedy is to simply mitigate the harm by means of such things as art therapy and time in nature—they can’t completely replace human connection, but they can at least improve the neurophysiological situation (which in turn, might be enough of a stop-gap solution to enable a return to human connection).
For more on all of this, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
How To Beat Loneliness & Isolation
Take care!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
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