The answer is "melatonin".
Melatonin is a hormone found normally in the body. Melatonin utilized as medication is normally made artificially in a lab. It is most normally accessible in pill shape, yet melatonin is likewise accessible in frames that can be put in the cheek or under the tongue. This enables the melatonin to be assimilated straightforwardly into the body.
A few people take melatonin by mouth to modify the body's inward clock. It is utilized for stream slack, for modifying rest wake cycles in individuals whose day by day work plan changes (move work issue), and for helping blind individuals build up multi day and night cycle.