this is pavel durov, the creator of telegram
he's 40 and his net worth is estimated in billions
here's what he says about longevity and fitness

>1. AVOID alcohol. There may be some rare exceptions, but in general, alcohol (as well as other addictive substances) makes people less healthy and visually older.
>2. Sleep a LOT. Sleep is when your body repairs itself. You can’t borrow it: lack of sleep during the week can’t be compensated with oversleeping on the weekend.
>3. Do NOT overeat. Excessive weight makes people look older and correlates with dozens of illnesses. Typically I eat twice a day within a 6-hour window or once a day, no snacking. Eating 3+ times a day is just a (bad) habit.
>4. EXERCISE. Moderate but regular exercise makes people look healthier and live longer. Personally, I don’t do much cardio (I’d rather walk/cycle/swim in the open air) and prefer moderate weights.
>5. LIMIT stress. There are mental habits that help. It helps to believe that everything that happens is for the better. Stoic techniques such as negative visualisation and generally not giving a shit also work. Living close to nature makes all of the above easier.
>6. Do NOT eat meat. Eating seafood and wild-caught fish is fine, but farmed red meat is something most people who look younger than their age avoid. I suspect the unhealthy nature of farmed meat has to do with the way livestock is raised and killed (growth hormones, fodder etc).