305, [Shocking] Could a Handy Fan Cause Heatstroke!? Knowledge and Hacks to Wisely Survive the '40°C Era' Heatwave That's Different from the Past

Good morning☀️
This is Masaya Kanemaru😊

Today, I've written an article about the fear of the increasingly intense heat we face every year and how to deal with it📝
I want as many people as possible to read this, so please share it with others‼️

Introduction: Trying to get a cool breeze but getting 'hot air from a hair dryer' instead?

Lately, the suffocating heat has really been relentless, hasn't it...!☀️

Just walking outside makes sweat pour out, and the one thing you can't let go of is a 'handy fan' (portable electric fan). If you walk through town, you see many people blowing air forcefully toward their faces.

However, let me tell you this first.

🚨 [Shocking Fact] If you keep blowing strong air from a handy fan onto your face on a sweltering day, you are at risk of collapsing!

You might be surprised, thinking, 'Wait, why? I'm using it to cool down!?'

Actually, this is a 'wrong way to use it' that manufacturers and expert organizations are warning people about.

This time, I will deliver plenty of information, from data on 'why today's heat is so dangerous' compared to 30, 20, and 10 years ago, to the terror of 'Illusion Heatstroke' which is a hot topic on social media, as well as 'the correct handy fan hack to achieve a -5°C sensation' and 'life-saving knowledge to protect babies in strollers'!✨

Learn the right way to protect yourself and your precious family from this dangerous heat!

Chapter 1: The terror seen in numbers! The Japanese summer has changed into a 'different dimension of heat'🔥

'Summers were hot back then too,' 'You can get through it with willpower'... Aren't you thinking things like that?

Actually, even looking at Japan Meteorological Agency data, the current Japanese summer has become a completely different world compared to 30 years ago.

📊 Comparison table of Japanese summer heat by decade

In 1996, 30 years ago, it was an era where we made a huge fuss about 'sweating so much today!' just because the maximum temperature exceeded 30°C. Days exceeding 35°C in central Tokyo happened maybe once a year, if that. The unreasonable instruction to 'not drink water' during school club activities barely remained, and that was only because we could somehow endure it at the temperatures of that time (though it was still dangerous!).

As we moved through 20 years ago and 10 years ago, 'sweltering days' exceeding 35°C became the norm, and this year, the Japan Meteorological Agency officially started using the term 'extreme heat day' to refer to maximum temperatures of 40°C or higher.

💡Point
When facing a 'sweltering day (35°C)' with the mindset of the past, we tend to take measures as if it were a 'midsummer day (30°C)' from the old days. However, today's heat is a 'disaster-level environment' that has
base-leveled up by a full 5°C or more compared to the heat of the past🔥

Chapter 2: [Warning] The true nature of 'Illusion Heatstroke' that causes people who blow air on their faces to collapse

On such 'extreme heat days approaching 40°C,' something we often do is 'blow air directly onto our faces with a handy fan.'

Have you ever thought, 'It's not cool at all even when I use it on a sweltering day... is it actually pointless?'

Actually, that suspicion is spot on.
In fact, it is causing a very dangerous situation.

1. Wind over 35°C is just 'hot air (like a hair dryer)'

If you turn on a handheld fan outdoors when the temperature exceeds 35°C, the air it sucks in and blows out is naturally 'hot air over 35°C.' This is exactly the same state as constantly blowing hot air from a hair dryer onto your face in a room! It's impossible to feel cool when hot air is being blown at you, right? 💦

2. The mechanism of 'illusory heatstroke' that tricks the brain

What's even scarier is 'illusory heatstroke.'

1. You blast your face with a handheld fan outdoors when the temperature is near 40°C.

2. The sweat on the surface of your face evaporates (dries) in an instant.

3. For the brief moment the sweat evaporates, the sensors on your skin feel, 'Oh, that's cool!'

4. Your brain mistakenly thinks, 'Body temperature has dropped,' and stops the commands to lower body temperature (sweating, dilating blood vessels).

5. However, your actual deep body temperature (core body temperature) has not dropped; in fact, it is rising rapidly due to the hot air!

6. By the time you notice, you have exceeded your limit, and you suddenly lose consciousness and collapse on the spot...! 😱

It is truly a heatstroke that becomes too late to treat due to a 'brain illusion.'

The sense of security that 'it's okay because I'm blowing air on myself' becomes the biggest trap.

Chapter 3: Just by doing this, you get a 'minus 5°C sensation'! The ultimate handheld fan utilization technique

'So, does that mean I shouldn't use a handheld fan on sweltering days?'

No, there's no need to give up! With a little ingenuity, there is a hack to turn it from a 'dangerous machine' that blows hot air into the 'ultimate cooling machine'! ✨

The key to this is using 'evaporative cooling.'

💡 Hack: The collaboration of 'wet towel/mist' x 'handheld fan'

The phenomenon where the surrounding heat is rapidly taken away when a liquid turns into a gas (evaporation) is called 'evaporative cooling'.

The key is not to blow away sweat, but to artificially create water droplets and blow air onto them!

• For men and active types: Spray a bit of 'cooling mist' on your neck or arms, then blow air from your handheld fan onto it!

• For women and fashion-conscious types: Wrap a 'cooling scarf' or 'damp towel' that has been soaked in water and wrung out around your neck, and blow air onto it!

Just by doing this, the air will instantly become as cold as ice, and the perceived temperature will definitely drop by 5°C—a dramatic change! It promotes natural evaporative cooling, so it effectively lowers your body temperature without tricking your brain. ❄️

Chapter 4: [Most Important] Knowledge to protect babies in strollers from 'reflected heat hell'

In this extreme heat, the ones we must protect with the most accurate knowledge are 'children in strollers.' Babies and toddlers cannot tell you themselves when they are 'hot' or 'suffering.'

1. Adults and children see different worlds (temperatures)!

When the temperature is 35°C at the height where adults stand (about 150cm–170cm), it is a 'scorching hell' of nearly 40°C–50°C at the height of a stroller (30cm–50cm above the ground) due to the intense reflected heat from the asphalt! ☀️🔥

When adults feel 'a little hot,' the inside of the stroller is in a sauna state.

2. Correct installation position for stroller fans

Recently, I often see parents attaching clip-on fans to strollers.

At this time, it is well known that the best way to install it is to blow air from above (the child's head side) downwards.

If you blow air from below, you end up blowing the heated hot air and dust near the ground directly onto the baby.

3. [Super simple hack] Lay an 'aluminum sheet' under the seat!

Even more effective is blocking the radiant heat (reflected heat) from the ground.

👶 God-tier item for stroller heat protection: 100-yen shop 'aluminum sunshade/insulation sheet'

Just cut an aluminum sheet, which you can buy at a 100-yen shop, and stick it to the back of the stroller seat (the bottom surface closest to the ground)!

Just by doing this, the aluminum reflects the intense radiant heat from the ground, dramatically suppressing the temperature rise of the seat!

Conclusion: Protecting loved ones is about 'knowledge,' not 'guts'

How was it?

"I was fine with this much in the past"

"I'll just push through with willpower"

"I'll hold off on drinking water with sheer grit!"

Such "old common sense" or "vague responses" can be fatal in today's extreme heat, which approaches 40°C.

Let's organize the knowledge we introduced this time!

• 🚨 Directly blowing strong wind on your face on a scorching day is a no-go! Beware of 'illusory heatstroke' where you trick your brain by drying your sweat!

• ❄️ Use a handheld fan in combination with a 'mist' or 'wet towel'! Experience a -5°C cooling effect through evaporative cooling!

• 👶 Strollers can exceed 40°C due to reflected heat! Place the fan from above and use an 'aluminum sheet' under the seat!

Protecting your precious family, children, and your own body is not about willpower, but 'correct knowledge'.

Please share this knowledge with your family, friends, and loved ones. Let's update our knowledge together and survive this disaster-level summer with a smile! 😊✨

Thank you for reading until the end! If you found this article helpful, it would be a great encouragement if you could 'like' or 'follow'!

For article requests, appointments, questions, etc., please contact me via Instagram♪
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