Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store

why we yawn when we are sleepy or drowsy

seo-qna
Last updated date: 19th Jul 2024
Total views: 358.2k
Views today: 6.58k
Answer
VerifiedVerified
358.2k+ 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..