After using the bathroom, 95 percent of people fail to wash their hands long enough to kill harmful bacteria, a new study finds.
Researchers also found that only two in three people use soap, while one in 10 skips the sink altogether, and men get much lower marks for hand hygiene than women.
A team from Michigan State University trained a dozen students to inconspicuously observe and collect data on hand-washing behavior in restrooms in bars, restaurants and other public places in a college town. In all, 3,749 people were observed.
The U.S. Centers for Disease Control and Prevention (CDC) recommends that you wash your hands vigorously using soap and water for 15 to 20 seconds, or the time it takes to sing or hum "Happy Birthday" twice. But on average, bathroom users only washed their hands for 6 seconds, and just 5 percent washed their hands for 15 seconds or longer, the researchers found.
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