It’s best to join a gym when you are in your 20’s, 30’s or 40’s.
Why is this? Because the older you get, the more difficult it becomes to stay in shape. You also start taking medications that can cause weight gain and joint pain. And if you fall ill for some reason, it will be harder than ever to get back into shape when sickness strikes again. As such, most people who wish to lose weight always reach out when they are young because there is no better time than now!