When the body heats up, metabolism increases. This in turn increases blood circulation, especially in areas of the body where blood circulation is not so good. This has benefits for the skin, connective tissues and muscles, loosening and relaxing them. Muscle soreness is reduced and healing can be accelerated. Renal activity is also increased and the immune system is strengthened.
Increasing body temperature by just one degree increases metabolism by 7%. This is also the reason why heat therapy should not be excessive. If the metabolism continues to increase, this can become too taxing on the circulation.
The increase in heat creates a kind of "artificial fever" in the body, which activates the immune system's defenses and promotes healing. However, the treatment must be carried out in a correct and controlled manner to ensure that the effect remains positive.
When the body is well warmed up, it is much easier to move around and do sports. Therefore, thermal therapy is also directly related to physiotherapy. Hot thermal baths are also highly recommended because the water pressure and the reduction of gravity have a positive effect on the body.