Fasting
Simply put, it means you stop eating completely, or almost completely, for a certain stretch of time. A fast usually lasts from 12 to 24 hours, but some types continue for days at a time.

Sawm is the Arabic term used to describe the act of fasting. Passed the age of puberty, Muslims are required to fast during the month of Ramadan, which entails abstaining from food, drink, sexual relations and displeasing speech and behaviour from sunrise until sunset.