Yawn is the non stoppable process for many of the human being. We are yawning because we get bored and tired. No one not yet found the exact solution for the yawning. But it is the involuntary respiratory reflex. Which is going to be regulating the carbon dioxide as well as the oxygen levels in the blood? For scientifically we say that yawn is nothing but reflex opening of the mouth is followed by the deep sleep. Yawning process will control by the humans spinal and nerve centers. Technically we say that yawn is the process when it comes means the oxygen following through the lounges using oxygen-toting cardiovascular system. Some peoples are says that yawning is the process when brain going to do more action it will showed out through yawning. The important tip for yawning is the capacity of relax. If you are busy with whole day means doing yawning is give relax and better feeling where you cannot get it in metalbeds Yawning is advertised as a great way to meditate, since meditation heightens your alertness. The following tips are used to avoid day time Yawning is Get a good night's sleep, Chew gum or always have something in your mouth, Do not let your thoughts stray when you are tired.