In the UK, called the optimal duration of hand washing

© Fotolia / Subbotina Applythe hands with soap and water. Archival photoIn the UK, called the optimal duration of hand washing© Fotolia / Subbotina Anna

Person must spend on washing hands for 20 minutes to fully get rid of germs. This writes the Guardian, citing data from the Royal Pharmaceutical society.

According to experts, to determine the optimal duration of the process, do not have to use a timer — you can double-sing «Happy Birthday to You».

According to studies, this time lets delete all the viruses and bacteria that can cause colds, flu and upset stomach.

According to pharmacists, a simple hand washing helps to prevent about one-third of cases of diarrhoea and 16% of cases of respiratory infections.