Any exercise that is weight-bearing (done standing up) can help prevent or slow bone loss and may even modestly increase bone density. This includes walking, jogging, stair climbing, dancing, and tennis. Swimming is not weight-bearing, and riding a bike is only partially weight-bearing.
Exercise also decreases the risk of fracture by improving strength and balance. You can exercise more consistently when you include other people, whether family, friends, or strangers. Showing up for an aerobics class three times a week is easier than deciding alone every day when, where, and what your exercise will be.
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.