“Office Knee” is becoming a bigger hazard than tennis elbow! More than 1/4 of office workers age 16-65 say they’ve had painful knee joints for up to 2 years. Doctors say that long hours of inactivity make the joints stiff, and weight gain by the sedentary jobs stresses the joints too. However a four-year study of middle-aged adults by researchers such as Dr. Thomas M. Link of the University of California, San Francisco found that both those who were most physically active as well as those who were least active, showed an accelerated breakdown in knee cartilage! Thus, those people at higher risk for osteoarthritis can benefit most from doing only moderate exercise in low impact sports such as walking or swimming. Likewise, researchers at the Hospital for Special Surgery in New York City found that 53% of arthritis sufferers who were given weekly classes in dance, chair Pilates, Yoga, and Tai Chi reported less pain, and more than half showed improvement in activity levels, sleeping, walking, working, and enjoyment of life in general.