Baby Sleeping and Yawning

Why do we yawn?

Are you yawning yet? Thought so. Infectious yawns are both frustrating and fascinating.

Sometimes all it takes is seeing someone yawn, hearing them discuss it, or even reading about it for you to develop an uncontrollable urge to yawn yourself.

Man yawning

We’re all painfully aware that this occurs (it can be extremely embarrassing to be unable to conceal the back of your throat), but have you ever considered why?

We examined yawning, as well as some of the other strange things our bodies do on a daily basis.

Young woman yawning on beige couch

What causes us to yawn?

You may have heard that yawning helps your breathing by allowing more oxygen to enter your body and expelling excess carbon dioxide.

Man yawns

However, in the 1980s, a number of experiments were conducted to test this theory, and they all concluded that it is completely false.

Therefore, why do we do it?

Sleepy African American Man Yawning Standing Near Mirror In Bathroom

According to new research, it may be because yawning cools the brain and prevents it from overheating, similar to how the fan in your laptop does.

Creative concept of the frozen brain.

Yawning has been linked to fatigue in some studies, and given that you’re more likely to feel drowsy in warm weather, the associations appeared to make sense.

young man hands repare laptop at home

As for contagious yawning, it is believed to be a very ancient form of communication. This is because, as previously stated, it is associated with tiredness, and thus would signal that to everyone around them, synchronizing their body clocks.

Alarm clock on the bed

Another reason you may yawn is that your body is attempting to wake up. The motion assists in stretching the lungs and their tissues and enables the body’s muscles and joints to flex.

Good morning. Guy wakes up and rubs his eyes

Additionally, it may direct blood flow toward your face and brain, enhancing alertness.

Stay alert concept

When you yawn, your brain slows down, causing its temperature to drop. When you’re bored, your brain isn’t stimulated and begins to slow down, resulting in a temperature drop.

Guy in shirt hold human brain on yellow and blue backgrounds

When you see another person yawn while you are in the same environment, you are exposed to the same temperature.


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