Your knees and hips are your largest joints. While supporting your weight as you stand upright, they must work in close coordination to provide the mobility most of us take for granted. So it’s not surprising, given all that your knees and hips do for you, that they’re prone to injuries and deterioration."

(You can search to buy the full report as the linkage not allowed here)

Harvard's word, our action! Let we stand up using Tai Chi to say Bye Bye to knee and hip pain!

Tai Chi exercises that are easy on the joints but will still help keep you in shape The types of Tai Chi warm-up that can help improve joint function.

THE Following are EXCERPT from Harvard Medical School 's report "Knees and Hips: A troubleshooting guide to knee and hip pain"

"Do your knees or hips hurt? Most people will at some point have knee or hip pain because these large joints have a demanding task: they must bear the full weight of your body while at the same time allowing for a wide range of motion. Wear and tear, injury, and simple genetic predisposition can all contribute to knee or hip pain.