That's my take at least. During winter I'd probably have a more depressing perspective but the sun has been out lately.
However, almost all people I know that are over the top healthy (measuring everything, doing some sort of ‘du-jour’ diet (all meat, no meat, all protein, no protein, extreme fasting, no fasting; etc; ‘the best way to live’ changes more often than JavaScript frameworks), a lot of sports) are addicts to it or do it because they believe they will get a lot older than others (weird to me as many spend a of time doing stuff they don’t like; why would you want to lengthen your life in that case, but ok).
I'd hate to hear your winter perspective :)
The same way, people who have suffered a lot in the past might be now more happy than you are, maybe you’re objectively better but you might not perceive it that way, which is what matters in the end.
There are many studies that prove that having a healthy body (like not very obese) improves your lifespan.
But going 5x to the gym a week, or a 6-pack has very little impact.
So make sure you touch grass, have sometime to take care of your body but don't go extreme, it's a waste of time
Living healthy is extrinsically rewarding in itself. You better your odds at least. Maintaining this latent chip on your shoulders towards the unhealthy is weird.
EDIT: I wonder if there is a (channeling Nixon) silent majority of health-“nuts” who just live healthy without advertising it (beyond their inherent health and vitality!). We naturally mostly notice those who make it part of their persona.
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.
Of course, the chance of death is always 100% in the end :^)