According to National Cancer Institute, several studies have shown that exercise is effective for decreasing the risk of prostate cancer, hastening prostate cancer recovery, and lowering the chances for prostate cancer reoccurrence. One study found that rigorous exercise, such as participating in a competitive sport, appears to hinder prostate cancer progression in men aged over 65. Here's how several sports measure up when it comes to major league health benefits: 1. Baseball Camaraderie and team play is great for personal morale. Even if you lose the game, you've still spent an enjoyable few hours exercising with friends who help you keep your mind off yourself and your spirit high. Read about how sitting for more than five hours a day can adversely affect your health.