@Kant
This. Another race to be the most-unbothered.
Similarly, you could say 'another race to be the most bothered.'
As pps have said, this is just like covid again. The media whipping people up into a frenzy for two or three days when it will be a bit hot, and the media's minions all over social media and message boards like this, rushing to enable them, by putting the fear of God into everyone - including their own children. It's shameful.
As a pp said, no wonder children/young people struggle so much with anxiety and coping in life in general these days. WTF are (some) people turning the next generation of adults into? The British never used to be like this. What the fuck is happening? 
As has been said, apply sunscreen, stay out of the direct sunlight between 11am and 3pm when it's at its most intense, and stay hydrated/drink plenty of water. It's really not rocket science, and the media whipping everyone up into a frenzy is bonkers. Fortunately it only seems to be on forums like this where people are going way OTT about it. In real life, I don't know a single person who is acting in the OTT manner that some people on this thread are.