 Hi, I'm Dr. Viji Ratan, a consultant orthopedic and sports injury practising in Bangalore Manipal Hospital, Whitefield. Maintain healthy weight according to your body height, which is measured by a body mass index. Ideally, a person should stay within the range of 18 to 25. Try to balance activity and rest, clubbing high-impact activities or sports like basketball and tennis, clubbing it with low-impact exercises like swimming and yoga helps in reducing the strain across the joints. Simple lifestyle modifications like avoiding floor toilets, excessive usage of stairs, squatting activities, helps in reducing the stresses across the weight-bearing joints, particularly the knee joint-related pains and arthritis. Try to avoid injuries is a statement which is easier said than done, but it's still possible by analysing proper body mechanics and the forces acting across the joint. When you start with a new exercise program, go slow and stop or slow down if there is a pain arising from any joint. Try to heed to persistent pain signals arising from the body and seek prompt treatment so that your injuries don't become serious or larger, which may need surgical treatment.