Yawning can be described as an inadvertent action of opening the mouth wide, blobbing the jaw and then breathing air inside, which fills up the lungs, inducing the lungs to enlarge, abdominal muscles to contract and the diaphragm to move down. Everyone yawns. Research signifies that even unborn babies yawn in their mother’s womb. Most people reckon that yawning occurs when we feel tired, sluggish or bored. But what is the actual reason behind this?
• The research indicates that one of the key reasons is an increase in the carbon dioxide levels or reduced oxygen levels in the blood. It is the body’s reflex action to guarantee there is adequate oxygen in the lungs, which is hence passed onto the bloodstream.
• When an individual has not slept properly or is tired, it causes the temperature of the brain to rise. When an individual yawns, the body gets cooled, the brain temperature gets stabilized and the muscles and joints are flexed.
• If you yawn too much at work, the cause could be boredom or drowsiness.
• The mirror neurons that are found in the brain are dependable for it. In accord to mirror neurons, when a person sees a different individual yawn, he copies the same action.
• When chemicals in the brain, such as dopamine, serotonin, and glutamine which influence the emotions, appetite, and moods of a person, get raised, it can induce an individual to yawn as well.
• Sometimes, yawning exorbitantly may signify a sleep disorder. This is since you do not get the required rest it may make you feel tired and fatigued, and this can cause a yawn.
Can excessive yawning be considered as a health problem?
Continuous yawning can signify an underlying disease or disorder. The study has shown that if it is attended by other presages such as smallness of breath, increased heart rate, anxiety, chronic headaches, etc. it could be due to life-threatening conditions such as a brain tumor, heart disease, epilepsy, etc. In these conditions, the vagus nerve induces a decrease in the heart rate and the blood pressure. The oxygen levels in blood drop, making a person to yawn more than normal.
Excessive yawning, in the common cases, can be maintained by leading a fit lifestyle. Sleeping for at least seven to eight hours, will keep the body active and bridle this problem. Amending one’s inhalation pattern i.e. taking deep, long breaths so that there is sufficient oxygen in the body is another way to cease this.
It is an absolutely normal condition if one feels tired and sleepy at the end of the day. However, if you constantly feel tired and tend to yawn exorbitantly even after making the above everyday life changes for no obvious reasons; look for medicinal help at the earliest to rule out any severe health issues.