A new device Finnish, Valkee could help people with seasonal depression, mood changes and even jet lag.
The Valkee illuminates parts of the brain by the ears. It is the size of an iPod but the headphones emit a beam of light optical fiber instead of music.
92% of those who tested 8 to 12 minutes a day showed an improvement of their condition. Its operation relies on the fact that the brain is sensitive to light, such as skin and eyes.
SAD usually begins in the fall, when daylight hours are fewer. There is a decline in self-esteem, anxiety, sadness, and in some cases, more cravings and more hours of sleep.
It is often recommended daily physical activity to overcome this passage depressive or special light therapy lamps that emit artificial light beneficial.
The Valkee could become a less cumbersome. Sold about $ 300, it should appear in the U.S. market soon.
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