I'm 76. After breakfast I do spine stretches (for my arthritic spine). Shoulder therapy (hurt my right shoulder). Knee therapy for (been doing it for 14 years), had to stop for a bit. Rehabbing from my partial knee replacement. Tuesday, Thursday and Saturday I lift weights, 20 lb dumbbells, 4 sets of 10.
For 13 1/2 years I had inflamed gall bladder (nobody could figure it out), any bending, twisting etc would make me sick. I needed the excercise, but I had to hire kids to haul my firewood for the house and sauna. Anyways, lack of excercise/work I got soft. Fuel cans and shoveling snow got harder. So Feb 1st 2015 I started the weights. What a difference that made.