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Human charger


Finnish company Valkee has found a new way for Finns to stay cheerful even in the depths of their cold, dark winters. Their small device – resembling an mp3 player with earphones – emits light directly to the brain through the ear canal which tests have shown helps reduce depression and anxiety caused by lack of sunlight.

“Like conventional light therapy, this method affects the brain’s nervous system, but the source of the radiation is much closer,” says CEO Juuso Nissilä. “A treatment of eight to 12 minutes has…



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