I don’t do that : I just know a lot of extremes and it seems that it is moving toward that more but that might be my bubble. If you eat healthy, move, no smoking or drinking and don’t mention your marathons or weird diet every 5 minutes, it seems healthy to me, but people around me seem to not find that healthy since covid. It has to be more extreme, especially diet and especially the telling me how much they move per day as if it’s something to be proud of. So yes your EDIT exactly; their persona.

I don’t care if people are unhealthy or not and I don’t think it matters too much from personal experience; do what you like but don’t tell me about it. I live healthy but not extremely so that I have a diet or am so skinny that my wrists are the size of my calves (I have honest to god people who have that and say they are in superior health; smart people with doctorates too I might add); I don’t believe it but I definitely don’t care how much they bicycle, run, swim or whatever.