70% of the French population regularly suffers from muscle pain. Heat has been used since the dawn of time to heal muscles and very effectively. It has analgesic properties, creates vasodilation of blood vessels, and acts on pain control mechanisms as well as on blood circulation. The diffusion of heat helps to promote relaxation of tissues and muscles. It is used to relieve mechanical joint pain such as osteoarthritis, herniated discs, muscle contractures when resuming activity or during the recovery phase in athletes. menstruation, headache, digestive troubles, relaxation.