Heat is effective. It penetrates deep, warming the muscle right where it hurts—to relax, soothe and unlock tight muscles. When heat is applied to your skin, it actually reduces the sensation of pain. Heat stimulates thermo receptors, which block your body's pain transmitters from sending pain signals to your brain. Heat increases circulation to the injured or sore area, which means more oxygen and nutrients are sent to the damaged tissue. Heat helps stretch soft tissues and relaxes sore muscles, which promotes flexibility and decreases stiffness. Heat therapy, or “Thermotherapy” is one of the most effective forms of treatment. Heat therapy has been long associated with comfort and relaxation but it also goes a step further and can provide both pain relief and healing benefits for many types of muscle injuries. Heat therapy is also a great method of providing immediate relief from sore, tight and stiff muscles and joints. There are several other significant benefits of heat therapy that make it so appealing. Compared to most therapies, heat therapy is quite inexpensive (and in many circumstances it's free - such as taking a hot bath). Heat therapy is also easy to do. It can be done at home while relaxing. For many people, heat therapy works best when combined with other treatment modalities, such as physical therapy and exercise. Relative to most medical treatments available, heat therapy is appealing to many people because it is a non-invasive and non-pharmaceutical form of lower back pain relief.