Tai Chi (correctly spelt Taiji, or fully as Taijiquan) is perhaps the most effective way to develop balanced health for the body and the mind. It develops:
Improved overall health
Calmness and focus of mind
Increased energy
Suppleness, strength, co-ordination, balance, and agility
Relaxation and freedom from stress
Strengthening of the internal functions of the body, such as the immune system, metabolic functions, and cardiovascular system
Understanding of the body's processes and self-healing
Harmony with the natural laws of human life