This is a sad story of someone that just lets themselves go. As I have posted on several forums, as you get older keep doing what you can. If you just set, you will rust out and die early.
Im 75 and am in good shape. I bike and lift hand weights. Going for a ride is no problem, but I really sometimes have to force myself to lift the weights the 3 time a week that I do. But ---- I know if I dont, I will start that long down hill slide to the old dirt bed. Never give up!!!!!!