Hand washing is important – but keeping sinks clean is just as crucial as they may harbor dangerous bacteria, say scientists.

Following is a transcript of the video. Narrator: Germs are like cars. They are always on the move. And our hands? They're like one big freeway, moving germs toll-free from location to location ...

where the germs can increase and produce toxins. Or you may be influenced by the habits of those closest to you, such as ...

In fact, Borwein warns that it's not even equally effective as an old-fashioned hand washing. "Soap and water is actually the best way to remove germs from the hands. Hand sanitizer is a good ...