You are sleepy? You'll yawn with your mouth wide open. Because is the sleep always identified with the yawn. Yawn is not always interpreted with sleepy condition. People's yawn because it was her lack of oxygen. With a yawn, we inhale oxygen as much as possible through the mouth in order to meet the shortage of oxygen in the body. Expert neuroscientis, Andrew Newberg, director of The Center for Spirituality and the Mind of the University of Pennsylvania said, yawn is one of the secrets of health.
"If you want to have a healthy brain, it is important to yawn," said Newberg. Evaporated, according to the rhythm of Newberg will stimulate the nerves in certain areas of the brain and regulate brain temperature and metabolism. The whole of this function will enhance muscle control, increased sensuality, and even overcome jet lag. Therefore he suggested that we yawn at least 10 times each day. Apart from giving a positive impact on the brain, yawn also makes the body more relaxed. "Yawn is more effective than meditation to improve cognitive function," said Newberg.
Research also shows yawn will stimulate the brain to function on a sense of empathy and social awareness. Yawn also helps regulate the body's biological clock. When we're tired, yawn is a signal that we will be resting or sleeping. Meanwhile, according to the exposure Joan Liebmann-Smith, Ph.D. and Jacqueline Nardi Egan through health article titled Body Sign, How to Be Your Own Diagnostic Detective, people yawn for various reasons, but it evaporates too does not always mean sleepy.
Scientists believe that yawn can help a person become more alert to immediately enter into the brain of oxygen. Since yawn is a sign of the amount of oxygen in the brain is decreased which can make a person difficult to concentrate. Yawning actually help regulate body temperature. With so happens the evaporated raise blood pressure and heart rate. Sometimes too much evaporated from the reaction of radiation therapy for cancer and consumption of such drugs for the treatment of Parkinson's disease. Another important fact, almost all vertebrate creatures was always yawn. Even the human fetus began to yawn when I was 11 weeks.
Uniquely some overseas patients admitted that every time they yawned their way through a spontaneous orgasm. One woman even became very good at feeling the yawn orgasm. Function evaporated with muscle stretching before exercise, which facilitate blood flow and heart rate. Not only humans are yawn, animals also like to open her mouth wide and yawned. Usually the animal will evaporate before eating or when going to fight. Yawn is also highly contagious. So, when he saw a friend evaporates, the reflex also will infect someone nearby. With a yawn signifies the brain was getting ready to change positions.
Even babies who are in the womb will evaporate before changing positions in his mother's stomach. According to the researchers, yawn is also related to a child's intelligence level.
Yawn can occur because:
Hunger
In less intake of glucose, brain metabolism is reduced. The brain is the organ most voracious of glucose and oxygen consumption. The reduced intake of glucose, then indirectly reduce oxygen consumption by the brain.
Exhaustion
The use of energy to work automatically requires oxygen as fuel (oxidation). In addition to the much needed oxygen, the oxidation also raises oxidants which should be discarded. If stacking, it will interfere with blood circulation. Yawn helps provide for the less oxygen it.
High air pressure
At very high areas, high air pressure will cause the lungs difficult to take the air. If no previous exercise, then this will be very dangerous, for example on the plane, jet, etc...
Cold air
At lower temperatures, the body will maintain an average temperature of the body (36, 5-37, 1 degrees Celsius) in a way to burn fat. This allows the body does not fall into the cold conditions. If this is fails, assisted with jackets, blankets, and sweaters or other.
The process of improving fat metabolism requires more oxygen, and additional food intake. Not surprisingly, in cold regions, we will more quickly hungry, yawn, and drowsiness.
Narrow Room
Poorly ventilated. In air-conditioned room, we tend to close all the vents so the cold air that we can enjoy. And in this way actually reduces air circulation, reducing oxygen and increasing carbon dioxide content. Make sure the room has exhaust-fan. If not, open your windows.
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