A guide to tai chi  All you need to know about tai chi,
including the health benefits, the different styles of tai
chi and getting started.  What is tai chi? Tai chi, also called
tai chi chuan, combines deep breathing and relaxation with slow
and gentle movements. Originally developed as a martial art in
13th-century China, tai chi is today practised around the world
as a health-promoting exercise.  What are the health benefits of
tai chi? While there's scope for more rigorous studies on tai
chi's health benefits, studies have shown that tai chi can help
people aged 65 and over to reduce stress, improve balance and
general mobility, and increase muscle strength in the legs.  Can
tai chi help prevent having falls? Some research suggests tai
chi can reduce the risk of falls among older adults who are at
increased risk. However, more research is needed.  Can tai chi
help with arthritis? There is some evidence that tai chi can
improve mobility in the ankle, hip and knee in people with
rheumatoid arthritis (RH). H