Always greet people with a firm ... er, fist bump? Finally, science has given people everywhere an excuse for all of the fist-bumping: It's more sanitary!
It's tempting to think that anything in or near your toilet and shower has to be the most bacteria-friendly place in the house. Not so! It turns out bacteria is pretty much everywhere: No matter where you go, there it is. Trace has the details.
Germs may linger for days on the surfaces found within airplanes, such as the armrest, seat-back pocket and toilet handle.
Stethoscopes tend to be more contaminated than the palms of physicians' hands, new research shows.
For guys, there's nothing like going in to take a pee, only to have it splash back against your leg. Anthony looks at the science of the pee splashback and what you can do to keep clean and dry.