Handwashing is the simplest, most effective and economical way to prevent disease and save lives, and is celebrated annually on October 15 as Global Handwashing Day. Handwashing Day was created to raise awareness and understanding of the importance of handwashing. Each year, more than 200 million people participate in Handwashing Day celebrations in more than 100 countries around the world. Global Handwashing Day is widely recognized by governments, international agencies, civil society organizations, NGOs, private companies and individuals. 2018 Global Handwashing Day theme is “Clean Hands – a recipe for health. -A recipe for health”, highlighting the link between handwashing and proper food hygiene and nutrition. It is often said that “disease enters through the mouth” and that hands are the means of transport between germs and the mouth. Hand washing is the most direct and effective way to reduce hand germs and viruses. Here I will teach you how to wash your hands properly and scientifically. What are some common questions about hand washing? I. When should I wash my hands? Before and after meals; before and after pooping; before taking medication; after touching blood, tears, snot, sputum and saliva; after doing sweeping work; after touching money; after touching others; after playing outdoors and getting dirty; after outdoor sports, homework and shopping; before holding children; after contact with patients and after touching infectious items, even after disinfection and repeated washing; before touching eyes, mouth and nose to wash hands; before wearing Wash your hands before wearing a mask and after removing it; wash your hands after touching public objects such as handrails, door handles, elevator buttons, and public telephones; wash your hands after coming home from outside. Second, how to wash hands? 1.Wet your hands: Wet your hands with running water. 2.Take soap: Use soap or hand sanitizer and rub your hands together. 3.Rub: Rub your hands for at least 20 seconds. Rub your palms, back of your hands, finger gaps, back of your fingers, thumbs, fingertips and wrists, rub out the foam, do not rinse when rubbing, make sure to wash the back of your hands, between your fingers and nail gaps. 4, rinse: rinse your hands under running water. 5, dry: dry your hands with a clean paper towel. Third, how many times a day is it appropriate to wash hands? There is no quantitative frequency of hand washing. However, there should be moderation in hand washing. Washing your hands too many times can cause damage to the skin on your hands, especially in the cold winter months. (It is important to avoid going to extremes.) The following is a scientific seven-step hand washing method. The first step: wash the palms of your hands – palms rubbing against each other. (Inside) The second step: wash the back side of the fingers – fingers crossed, palms rubbing against the back. (outside) Step 3: wash the palm side of the fingers – fingers crossed, palms rubbing relative to each other. (Pinch) Step 4: Wash the back of the fingers – bend the knuckles and rub them in the palm. (Bow) Step 5: Wash the thumb – rub the thumb in the palm. (Large) Step 6: Rub the fingertips in the palm. (Stand) Step 7: Rub the wrist. (wrist/end) A simple way to remember is the seven-word mnemonic for hand washing: inside, outside, pinch, bow, large, standing, and end (wrist). Friends, let us all learn the correct scientific method of hand washing, let us come together to “hand” to protect health!