HUMAN NUTRITION

Detailed explanation-1: -If you are doing it right, 20 seconds allows for enough time to be thorough, and for soap molecules to do their job on the entire hand. “It takes time to clean all those surfaces effectively, ‘’ Gilbert says. “If you try to do it in half that time, you’re probably not going to effectively clean all of them.”

Detailed explanation-2: -Lather your hands by rubbing them together with the soap. Lather the backs of your hands, between your fingers, and under your nails. Scrub your hands for at least 20 seconds.

Detailed explanation-3: -Rub your hands vigorously for at least 20 seconds. Remember to scrub all surfaces, including the backs of your hands, wrists, between your fingers and under your fingernails. Rinse well. Dry your hands with a clean towel or air-dry them.

Detailed explanation-4: -Scrub all surfaces: Palms, Backs, Fingers, Between Fingers and Under Nails. Scrub for 20 seconds – the time it takes to sing “Happy Birthday” twice. Rinse under clean, running water, dry hands with a clean towel or dry.