Relaxation drinks have been known to reduce stress, anxiety and calm nervousness due to their calming effects on the nervous system. People who are allergic to alcohol, recovering from alcohol abuse or have liver problems have resorted to drinking relaxation drinks because its ability to calm nerves and provides what people call a “buzz” however it is alcohol free which does not bring about the well known hangover. This is all dependent on the nutritional content which varies from one relaxation drink to another. There are reports of melatonin causing this next-day grogginess feeling.