Q. My wife washes her hands like she is going to do surgery. She says it takes 30 seconds to get rid of germs. I wash my hands for about 3 seconds. I don’t see any advantage in wasting a lot more time. What do you think?
A. Your wife is right. It takes about 30 seconds of vigorous scrubbing and rinsing to wash off most germs. If everyone followed your wife’s good example, there’d be fewer colds passed around each year.