This is one of those rare occasion that I am down with flu. Ever since I have started Taiji, falling sick has become something very rare. Practicing Taiji move the "Qi" within the body system that balance the energy and works well for me (especially saving lots of medical bills).
Taiji also strengthen muscles around the body and this helps my wife to have less ankle sprain. The Taiji movement requires the foot to move from left to right which exercise the ankle and increase the muscle strength around the ankle.
Recently I have been traveling quite a lot, working late and doing little Taiji. Well, back to my regular Taiji practice.... :-)