Do the body decay with age bothers you? Not just about the looks, but internal aspects like brain neuroplasticity, libido, reaction times, more susceptible to diseases, joint pains, memory loss, etc.
I'm 25 and I'm terrified of slowly becoming a lump of uselessness, theres so much shit that is out of our control.
If only researchers gave a fuck about addressing ageing directly instead of putting bandaids like treating symptoms.