Dopamine is the neurotransmitter needed for healthy assertiveness and sexual arousal, proper immune and autonomic nervous system function. The worst case, if I may say, is a friend of thirty years. To make use of this method, just place a heating pan or a heat pack on the affected area for about 15 - 20 minutes. And remember, when nervolink comes to treating lower back pain, consistence is the key to be pain free.