A new video uses UV lights to show exactly how washing your hands kills germs.
Washing your hands has become a new trend (thanks to the coronavirus, as you are probably well aware). But just how effective is a proper hand wash? A new video was released on YouTube where one can see how a good, thorough hand wash kills germs on your hands, In the video, a UV light is used to show that a washed hand really is cleaner than an unwashed one.
