From Golf.com…
As you age, your body changes. Your metabolism slows down, you lose muscle mass and your range of motion declines, all of which can negatively impact your golf swing, especially when it comes to your swing speed.
Slower swing speed also means hitting it shorter which tends to lead to higher scores, but you don’t have to get stuck in this frustrating cycle. Phil Mickelson is living proof that you can gain swing speed and continue to bomb it at 50 and beyond.
While there are an infinite number of variables that can help your health and fitness level, when it comes to gaining swing speed you have to commit to getting fit at 50.