What does 40 degrees Celsius mean for human health?

40 degrees Celsius is like standing outside on a very hot day, but even hotter, so hot it can affect how your body feels and works.

Imagine you're wearing a heavy coat on a summer day. That's how your body feels when the temperature is 40°C. Your skin gets all warm, like it’s in a big sauna, the kind you go to with your parents after school. You start to sweat a lot, just trying to cool down.

At 40°C, your body has to work really hard to stay cool. It sends more blood to your skin so it can sweat and cool you off. But if it's too hot for too long, your body might not be able to keep up, like when you run around too much in the park and get tired.

It’s like being outside on a day when the sun is shining really bright, and there’s no shade. You feel thirsty, tired, and maybe even a little dizzy, just like after you play for hours without taking a break.

So, 40 degrees Celsius is very hot, it can make people feel uncomfortable or even sick if they stay in that heat too long.