Neuroscience to resque with brainwave for regulating brain functioning. PMS is often called a "Slow-Wave" disorder, but recent research indicates that nearly any entrainment will work to reduce its symptoms. It has been concluded by many that an increase in cerebral blood flow (often an effect of entrainment) is the principal cause of PMS reduction during a session. Therefore, this session first relaxes the listener to Theta, helping increase circulation, and then at the end helps speed up the listener's brainwaves and increase cerebral blood flow. To listen this deep meditative session find a quiet place, have a glass of water, sit down, relax and listen to session with your headphones.