Tummy Time is an important activity for infants that involves placing them on their stomachs while they are awake and supervised. This practice helps strengthen the muscles in their neck, shoulders, and back, which are essential for developing skills like rolling over, sitting up, and crawling. Parents and caregivers should start Tummy Time when the baby is a few weeks old, gradually increasing the duration as the baby grows. It is recommended to aim for about 20 to 30 minutes of Tummy Time each day, broken into shorter sessions, to promote healthy physical development.