Men who regularly balance their laptop computers on their laps when working may be jeopardizing their ability to have children, according to a new study from fertility researchers at the State University of New York at Stony Brook.

The potential risk comes from the heat generated by the laptop computer and the close position of one's thighs when balancing the computer on one's lap, the researchers found. This heat is transferred to the scrotum, where the temperature can rise several degrees, putting users within the danger zone for testicular dysfunction.
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"They definitely made their point that temperatures are elevated. And since we know that elevated temperatures might affect sperm production, this is something we might want to look into," he said. But, "I am reluctantly going ahead with recommendations about laptop use at this point. This is a first-stage study."