If you snore loudly and feel tired even after a full night's sleep, you might have sleep apnea. Obstructive sleep apnea (OSA), which is the most common form of sleep apnea, occurs due to the obstruction of the upper airway during sleep. It occurs because of inadequate motor tone of the tongue and/or airway dilator muscles. This book aims at giving its reader a thorough understanding of OSA and all the necessary treatment options available, giving its reader an insight into the repercussions of ignoring the habit of snoring and the effects it has on one's health in the long run.