I workout with weights 3 days a week, do intense yoga three days a week (both for one hour) and walk 3 to 5 miles daily. I am 75 and eat only fresh fruits and vegetables, fish, chicken, duck and occasional beef or lamb. I don’t drink alcohol and don’t drink sweet drinks. I am 5’10” and have maintained my weight at 160 pounds. I was on Lupron and Abiraterone for three years with a testosterone level of “undetectable”. I have been off them for a little over one year and now have a testosterone level of 100 and still get many of the side effects. I try to combat abdominal fat by doing 100 to 200 situps at least three days a week as well as other core strengthening exercises. Since none of this gets easier with age, the best time to start is right now. Exercise is a great antidote to fatigue and depression. Exercise is not only good for your muscles, it is also good for your bones and your mental health.