21Apr
Why Do We Yawn?
Yawning, not just humans, but a lot of animals as well do it. In essence, we yawn to take in a big breath of air into our lungs. Most often, we yawn when we are tired or sleepy by the end of the day, or as soon as we wake up in the morning. For years now, yawning has been associated with drowsiness and the body’s signal to fall asleep. However, there is a lot more to yawning than merely...
