Courses for Kids
Free study material
Free LIVE classes

why we yawn when we are sleepy or drowsy

Last updated date: 19th Mar 2023
Total views: 211.8k
Views today: 1.91k
211.8k+ views

When we are sleepy or feel drowsy, we yawn because our brain cells lack sufficient amount of oxygen. The deep breath associated with yawning helps us to drawn in more oxygen and supply the much needed oxygen to the tired body organs including the brain..