Really? In my 30s I felt on top of the world. Enough wisdom to put my knowledge to good use and a fit body that only had the occasional ache. Everything went downhill around 42 though. Eyesight, hearing, processing speed, memory, sleep apnea, weight gain, hair loss, ED... I have to be on some combination of marijuana to sleep and modafinil to wake up. Exercise helps but the gains fade fast so it's basically a 10% tax on my waking hours to keep things from fading faster. Oh and when you're 40 something no one gives a shit. You're not old enough to pity, but you're old enough to be responsible for everything. You just have to keep slugging it out with reality until your mid 60s.