Olympic gold-medalist Rowdy Gaines has swimming tips if you’re an older swimmer, or returning to the pool after years away. Gaines won three Olympic gold medals at the 1984 Los Angeles Games and is widely known as the “voice of swimming” for his coverage of the Olympics with American network NBC. Swimming is an all-around exercise with water providing mild resistance. It’s low-impact, offers a complete workout and is suitable for all ages. “Of course I’m biased, but I will stack swimming