REPOST: Study: 95% of People Don't Wash Their Hands 'Correctly'

This article from the Atlantic reveals that most people tend to take hand washing lightly, even though the simple act can help them avoid many diseases. Read the report here:

Image Source: theatlantic.com

 

PROBLEM: If you haven't consulted with the CDC's official guide to handwashing recently, you might be surprised to learn, as I was, that they don't distinguish between using warm or cold water. What is important, they say, is that you use soap, that you scrub well (including the backs of your hands, between your fingers, and under your nails) for at least 20 seconds, and that you dry your hands afterwards. The CDC also officially recommends humming the "Happy Birthday" song twice through for an accurate measure of time.

METHODOLOGY: Since "research has established that people generally overstate the degree to which they wash their hands," researchers at Michigan State hid out in four different bathrooms to see what was really happening. More specifically, they deputized their research assistants to do so. The assistants, who were instructed not to draw attention to themselves (they entered data into their phones so it would look like they were just texting), categorized people as not washing their hands at all, as wetting their hands but not using soap, or as washing with soap. In addition, they timed how long each person spent scrubbing.

RESULTS: Of 3,749 people observed leaving the bathrooms, 66.9 percent used soap, while 10.3 percent didn't wash their hands at all. The other 23 percent of people stopped at wetting their hands, in what the researchers, for some reason, call "attempted washing" (as if maybe those people just weren't sure how to follow through). Although the researchers generously counted the combined time spent washing, rubbing, and rinsing, only 5.3 percent of people spent 15 seconds or longer doing so, thus fulfilling the requirements of proper handwashing. They average time spent was 6 seconds.

Other findings include: people were less likely to wash their hands in the evening and significantly more likely to use soap in the morning; women, at 77.9 percent, were much more likely to use soap than men (50.3 percent), as were people perceived to be older than college aged, and soap was used more frequently when the sinks were clean.

IMPLICATIONS: Two separate surveys that relied on self-reports found that 96 percent of people claim to wash their hands consistently. If what's going on around Michigan State is any indication, the opposite is in fact true. Handwashing, again according to the CDC, "is the most effective thing one can do to reduce the spread of infectious disease."

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