Can exercise increase bone and muscle mass in older adults?

The aging process is associated with a decrease in bone and muscle mass of about 1 percent per year, and a decrease in conditioning or functional reserve. However, exercise can be considered almost a "miracle" intervention that can minimize much of this effect. Depending on the intensity of training, the absolute difference can be as much as one third.

Studies in 90-year-olds have shown that improvements in strength and muscle mass are possible even quite late in life.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.