Realistically, the body changes as we age. Unfortunately, we live in a world that suggests everyone should have a 25 year old body for their entire lives. There is no better place to see the effects of aging on the body than at a gym. There are a few exceptions, but most guys working out have nice arms but struggle with the midsection as they approach 50. Those guys go hard and have been working out for years. Even guys who don't workout and are not over weight have aging body issues. In their case, they tend to be skinny with flabby muscles and skin. Unless you have good genes, having a good body over 50 requires very hard work, and basically starving your self to death. Unless you are a celebrity, the average person is not willing to adhere to some mythical beauty standard. The best thing you can do is stay toned, control the weight gain, and exercise for your heart.