Aggressive Exercising is pure Stupidity!
I know I was a gym rat, suffered many injuries from that, plus playing football for 15 years and then running 10 miles 4 times a week for many years.
Some mornings when I get out of bed, I have trouble putting socks on. My great grandfather lived to 96, never worked out, never suffered from sports injuries and was nimble his entire life.
Walking 2 miles a day is the best exercise of all.
Yep. Low impact exercise that will allow you to raise your heartbeat for an extended period is all that's needed. A couple of doctors of mine swim after work several days a week to work off stress, real low impact there. We can only put so many miles on our body's 'chassis' (knee's, hips, ankles, et al)