Proper exercise can reverse damage from heart aging. Exercise can reverse damage to sedentary, aging hearts and help prevent risk of future heart failure -- if it's enough exercise, and if it's begun in time, according to a new study by cardiologists. Source 1t.
I plan to be in my 70s and still going strong so I do some exercising as I can. I know at times being disabled I can have a hard time doing what I want but other times I can. I still plant to be around to the ripe age of 129. SO I guess exercising is a must.