Serotonin is released when the suprachiasmatic nucleus gets activated due to the presence of light waves. Whereas, secretion of melatonin promotes the sleep cycle.
Further Explanation:
Serotonin refers to a happy hormone which contributes to the wellbeing as well as happiness in an individual. This chemical is usually found in the blood platelets, bowels, and brain. The actual function is complex and includes learning, reward, memory, and modulation cognition. Suprachiasmatic nucleus refers to the small segment of the brain found in the hypothalamus region and is found directly above the optic chiasm. This is responsible for managing the circadian rhythms.
Sunlight or light waves activate this part of the brain and release serotonin. Exposure to the sunlight is known to elevate the release of this hormone. Serotonin is linked with boosting the mood as well as helping an individual feel calm as well as focused.
Melatonin is considered to be the only hormone which is generated by the pineal gland. It is produced in response to the darkness. Therefore, it has a name called “hormone of darkness”. The mechanism is simple; darkness regulates the pineal gland which produces melatonin while exposure to the light blocks this mechanism.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Hormones
Keywords:
Serotonin, melatonin, darkness, sleep cycle, happiness, darkness, nucleus, light, sunlight, waves, optic chiasm, hormone, circadian rhythms.
