What are the long term effects of strength training?
Since the OP has asked, I will give him some information about strength training.
My main interest is not looking better or even living longer but in optimizing my cognition and other brain functions. And I think that weight training has a part to play in this brain health including improving cognition, sleep, mood. Resistance Training Improves Mental Health One way that weight training may help is by protecting the white matter of the brain. Lifting Weights, Twice a Week, May Aid the Brain Of course it also improves strength and thus helps to prevent falls in the elderly and improves self-esteem.
Here is what a 97 year old has to say about the effects of weight training and exercise for the elderly. Self-esteem played a big role in getting him to adopt a weight training regime. He was only 93 in the video.