SAD lamps typically show measurements in lux, which refers to the lamp’s luminance level.įor example, doctors might recommend that a person with SAD sit by a lightbox that provides 10,000 lux for 30 minutes each day as soon as possible after waking up.Ī person may also use lower lux lights, such as 2,500 lux, for 1–2 hours. According to a 2013 review, sunlight may trigger the production of serotonin through the eyes and skin.
Some examples are serotonin, which plays a role in mood, and melatonin, which helps with sleep patterns. The skin also uses sunlight to make vitamin D.Īdditionally, sunlight helps the brain produce hormones that the body needs to function. These govern how individuals feel and when they go to sleep and wake up.
It affects the body’s natural daily cycles, also known as circadian rhythms. SAD lamps, also known as sun lamps or light boxes, work by imitating sunlight.
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