Once a muscle or joint is injured, regular exercise is typically the key to rehabilitation. But when pain limits a body's ability to exercise, the healing process takes longer.  Biofreeze products help break this pain cycle, by relieving pain through a method known as "Gate Control," or "gating." In the gating process, menthol acts to stimulate specific sensory receptors in the skin, thereby blocking other receptors from sending pain signals to the brain.  Biofreeze products provide temporary relief from minor aches and pains of sore muscles and joints associated with simple backache, arthritis, bruises, strains and sprains.  This video presentation explains the Gate control theory of pain and how Biofreeze Pain Reliever interacts with that process.