Tennis helps your:aerobic fitness by burning fat and improving your cardiovascular fitness and maintaining higher energy levels, bone strength and density by strengthening bones of young players and helping prevent osteoporosis in older ones. fine motor control by the use of touch shots like angled volleys, drop shots and lobs. immune system through its conditioning effects which promote overall health, fitness and resistance to disease.nutritional habits by eating appropriately before competition to enhance energy production and after competition to practice proper recovery methods. learn to solve problems since tennis is a sport based on angles, geometry and physics.accommodate stress effectively because the physical, mental and emotional stress of tennis will force you to increase you capacity for dealing with stress.