I'm 53 and physically I feel pretty healthy despite high cholesterol and low thyroid...I have no intentions of being 'old' until I have no choice in the matter and for now, I am attracting guys as young as 39 so hopefully I have inherited my parents genes...not hoping for the bad knees but at least I think I have a good 10 or so years before that shows up. But I haven't had any illnesses in two years, cold/flu/stomach virus/ear infection, nothing. hope I didn't just jinx myself!