8. Any situation where the
circadian rhythm is
disturbed due to biological
or environmental factors, it
can affect levels of
melatonin, thus having
affects on human behavior.
12. 1. In general, what is the role of the hormone in the
body?
2. How does the hormone influence human behavior?
Testosterone & Estrogen
Task 1
Notes de l'éditeur
Various roles: Antioxident Interaction with immune system Dreaming (high levels increase REM sleep) Autism (may have lower levels) Most important function is regulating the sleep-wake cycle
Various roles: Antioxident Interaction with immune system Dreaming (high levels increase REM sleep) Autism (may have lower levels) Most important function is regulating the sleep-wake cycle
circadian rhythm Production of melatonin is inhibited by light and permitted by darkness Serotonin is converted to melatonin People in high latitudes where daylight is minimal need artificial lighting OR
seasonal affective disorder A form of depression (winter depression) Lack of energy & concentration Withdrawal from family & friends
alteration to circadian rhythm Body clock out of sync not linked to length of flight but east-west distance travelled Fatigue, irritability, mild depression
produced by the adrenal glands during high stress or exciting situations. This powerful hormone is part of the human body's acute stress response system, also called the "fight or flight" response.
It works by stimulating the heart rate, contracting blood vessels, and dilating air passages, all of which work to increase blood flow to the muscles and oxygen to the lungs.