What is osteoporosis? Osteoporosis is a disease in which bones become weak and are more likely to fracture or break. It is called a âsilentâ disease because bone loss often occurs without your knowing it. Until about age 30, your body forms enough new bone to replace the bone that is naturally broken down by the body (a process called bone turnover).
yinâ² and yangâ². n. (in Chinese philosophy and religion) two principles, one negative, dark, and feminine (yin), and one positive, bright, and masculine (yang), whose interaction influences the destinies of creatures and things.
Qi â an energy force thought to flow through the body; tai chi is said to unblock and encourage the proper flow of qi. Yin and yang â opposing elements thought to make up the universe that need to be kept in harmony. Tai chi is said to promote this balance.