This exercise protects against knee pain or arthritis, according to new study

People who biked at any point in their lives were 17% less likely to develop knee pain and 21% less likely to develop arthritis with pain in the joint, a new study found.  NBC News Health

​People who biked at any point in their lives were 17% less likely to develop knee pain and 21% less likely to develop arthritis with pain in the joint, a new study found.