The whiter the hands in these pictures, the dirtier they are — and the darker they are, the cleaner. Before washing your hands germs on the hands show up as white underneath a UV lightQUICK RINSE AND SHAKE: Research suggests that up to a quarter of us only briefly rinse our hands, but as this picture shows, that is not enough. Washing the hands for slightly longer has reduced the white areas compared with rinse and shake — no doubt because this time the hands have been dried with a towel. And damp hands transfer germs much more easily so drying them is keySIX-SECOND WASH WITH SOAP: The most important part of hand washing is using soap — it's sticky, so you have to wash it off. Apply the gel and rub your hands together properly so that the gel is applied to all parts of your hands.

Source: Daily Mail March 16, 2020 22:48 UTC