Sleep Apnea is a condition caused by a lack of air passing through to the lungs during sleep; it is an episode that lasts for more than 10 seconds. This deficiency of air leads to a decreased saturation of oxygen levels in the blood, which results in oxygen deprivation of the brain and other bodily tissues, known as Hypoxia. In order to normalize blood oxygen levels, the brain instructs a micro awakening and commands the body to reopen the airways. The person wakes up for a short time and commences breathing, often noisily at first, and then falls back to sleep. Quite often, the person has no memory of these micro-awakenings in the morning.