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This hormonal effect can helps stabilize circadian rhythms. This stabilizing effect is particularly important for individuals with mental disorders, who often experience circadian desynchronization and sleep problems. As a result, light therapy has emerged as an increasingly popular treatment option for various mood and psychiatric disorders. [64]
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Light therapy, also called phototherapy or bright light therapy is the exposure to direct sunlight or artificial light at controlled wavelengths in order to treat a variety of medical disorders, including seasonal affective disorder (SAD), circadian rhythm sleep-wake disorders, cancers, neonatal jaundice, and skin wound infections.
In response to light exposure, alertness levels can increase as a result of suppression of melatonin secretion. [3] [6] A linear relationship has been found between alerting effects of light and activation in the posterior hypothalamus. [3] [24] Disruption of circadian rhythm as a result of light also produces changes in metabolism. [4]
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Light skin provides better absorption qualities of ultraviolet radiation, which helps the body to synthesize higher amounts of vitamin D for bodily processes such as calcium development. [ 2 ] [ 11 ] On the other hand, light-skinned people who live near the equator , where there is abundant sunlight , are at an increased risk of folate depletion.
Flicker vertigo, sometimes called the Bucha effect, is "an imbalance in brain-cell activity caused by exposure to low-frequency flickering (or flashing) of a relatively bright light." [ 1 ] It is a disorientation -, vertigo -, and nausea -inducing effect of a strobe light flashing at 1 Hz to 20 Hz, approximately the frequency of human brainwaves .
Blake Lively stunned in a monochrome white ensemble at the CDFA Awards. The actress, 37, arrived at the event on Monday, October 28, with designer Michael Kors on her arm. She wore Kors’ designs ...