People yawn throughout the day even when you think about yawning. Animals even yawn. Yawning is one of the most contagious, uncontrollable actions our bodies do. There are many theories why people yawn.
One theory is that yawning helps your body bring in oxygen. But this theory has been debunked. The most scientific theory about why we yawn is brain temperature regulation. Study in Physiology and Behavior looked at the yawning habits of about 100 people found that yawning occurs less during the winter. The brain’s temperature gets too far outside of the normal temperature, inhaling air can help cool it down. If you’re tired, your brain is slowing down, causing its temperature to drop. If you are bored, your brain isn’t feeling stimulated and starts to slow down causing the temperature to drop. If you see someone else yawning, when you are in the same room as them, you are exposed to the same temperature. You also might find yourself yawning if you get migraines. During migraine, your blood clots in your brain. Since yawning cools down your brain, it also brings down the blood clots. Another reason may be yawning is an act to wake your body up. The motion helps stretch the lungs and it’s tissues, and it allows the body to flex its joints and muscles. It may also force blood towards your face and brain to increase alertness.
There are ways to stop yawning. One way is to breathe deeper. Your body may need more oxygen if you are yawning all the time. Exercise is another way, stimulating your brain can help you stop yawning. Cooling yourself down is the last way. Taking a walk outside in a cooler temperature can help you stop yawning as well.
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