
Melatonin is a hormone released from the pineal gland that induces sleepiness. The speaker discusses melatonin's effects on sleepiness and its indirect impact on hormone regulation, but he also explains why its better to manipulate light to help with circadian rythem.

"The speaker mentions melatonin as a common sleep aid and discusses its effects on inducing sleepiness and its potential impact on hormone regulation. However he explains why light manupulation may be more helpful and provides better control."




