>>936415392
It's especially dangerous for young and old.

I bought my elderly mother a nice water bottle and she's been carrying it around religiously for over a year now. It's the Zojirushi brand and I have one too. Old people are vulnerable because they don't feel thirst much and if they get dehydrated they might need to be hospitalized.

With young people, they are often more active outside and smaller bodies can't release the heat as well. I had heat stroke and dehydration in fifth grade, it sucked.

That said, we're still tougher than the British who start dropping dead by the thousands when it gets above room temperature. Pic related is from earlier this month.