Final answer:
Roger most likely suffers from sleep apnea, a condition where breathing stops during sleep due to a physical blockage of airflow or brain signal disruptions. Symptoms include snoring, disrupted sleep, and daytime sleepiness. There are two main types: obstructive and central sleep apnea.
Step-by-step explanation:
Roger's breathing sometimes stops when he is asleep, and he must wake up to begin breathing properly. He also snores quite a lot at night and is usually sleepy during the day. It is likely that Roger suffers from a condition called sleep apnea. This disorder is characterized by pauses in breathing that occur most often because of a physical blockage to airflow during sleep. In sleep apnea, carbon dioxide builds up in the bloodstream causing the person to wake just enough to start breathing normally. These episodes can lead to poor sleep quality, which is reflected in daytime sleepiness, irritability, and other symptoms such as morning headaches and a dry throat from excessive snoring. There are two types of sleep apnea: obstructive sleep apnea and central sleep apnea, each with unique causes but similar symptoms.