Yawn sleep also has health benefits

The body needs oxygen supply

Numerous scientific studies show that one of the main reasons causing the yawn is the increasing carbon dioxide levels or reduce the concentration of oxygen in the blood. Yawn is the body's reflex action to ensure there is enough oxygen in the lungs and thereby provide oxygen to the blood.

Brain temperature change

Yawn is also employment help maintain the temperature of the brain. When a person is tired or unable to sleep, the brain's temperature increase. When a person yawn, cooler than the body, the muscles and joints to be bent and also brain temperature is kept stable.

Tired or depressed

If you yawn so much while working, the reason might be tired or depressed, stressed. If you always feel tired and tend to yawn excessively, even after having a healthy lifestyle then you should come visit soon.

Due to the chemicals in the brain were stimulated

When some chemicals in the brain like serotonin, dopamine and glutamine ... irritated, they can affect emotions, mood and appetite. In addition, they also stimulate the central nervous system and cause reactions is yawn.

Sleep disorders: sometimes, excessive yawning may indicate the condition of sleep disorders. This is because your body does not get enough rest and sleep periods lead to fatigue. And this can lead to bouts of yawn repeatedly.

Yawn is an action difficult to control so if say it was intentional messages does not exactly, but it seems the ancients realized that yawn and sex related quite closely, especially the desire of blanket Pillow talk. Yawn will achieve an arrow hit two purpose, just make the "small boy" to be active just help for nerves, like ventilation will help give it a strong faction of supplements. People often yawn or have high testosterol means capable of love is also higher.

However, despite the yawn because what causes the amount of air taken into the lungs also dramatically increased, helping the circulation and cleanse the lungs, very good for health.

There are things, when yawn, the face, tongue and throat of strong contraction, we increase the pressure in the oral cavity. This pressure affects the nasal cavity, temporarily preventing the escape route of tears down the nose, so that the water from overflowing into the reverse rate online in the eyes, causing the eyes give me ten lagoon that is also the answer to why when yawn back tears.

NGabriel also can be spread and as such lines in a public place, in a meeting, if there is one person yawn, if others see also might be yawn-this phenomenon has always been research scientists, taking the human brain when they yawn and noticed a special brain activity in the region related to the mimic.

Yawn also expressed polite ... So, when we yawn to note cover the mouth when in public places, crowded place. The cover the mouth when yawning is not just culture, expression of respect to people around but also avoid spreading infectious diseases such as tuberculosis, through respiratory flu.=