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The formula "Σ(M-GM) 2/dfBetween" is used to compute
Melatonin
A hormone produced by the pineal gland that regulates sleep-wake cycles and is influenced by the presence of light.
Biological Clock
An internal mechanism in organisms that controls the cycle of biological processes and behaviors in a roughly 24-hour cycle.
Phototherapy
A treatment method that uses light to treat certain conditions, such as jaundice in newborns or skin disorders like psoriasis.
Seasonal Affective Disorder (SAD)
A controversial disorder in which a person experiences depression during the winter and an improvement of mood in the spring.
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