Age 69 male here who had CABGx4 in 2009, I've been fine since then. I exercise at the YMCA M-F with a combination of weight machines and walking on the treadmill 30-60 minutes. Since everything is closed due to Covid-19 I really miss my exercise. I read where we should continue exercise programs at home: 15 sit-ups, 15 pushups, 15 jumping jacks, etc...so I started with 5 sit-ups and 1 pushup (haven't done these for decades). I'm up to 15 sit-ups and 3 pushups today (I know, doesn't sound like much of anything). The plan is to continue increasing every day. Just hope things open up before I reach 100. Be safe everybody.