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Laptop heat can cause skin condition, study finds

That IHUM paper might have done some damage to your skin in addition to your sleep cycle. According to a recently published article in the journal of the American Academy of Pediatrics, chronic exposure to the heat source on the underside of a laptop computer can cause an unsightly rash dubbed “laptop skin” or, officially, laptop-induced “erythema ab igne,” a web-like, pinkish-brownish lesion.