Chronic Nasal Congestion
The probabilities of developing obstructive sleep apnea are almost double in time in people who have frequent nasal congestion. The cause of developing obstructive sleep apnea is not clear in this particular condition, but it occurs more frequently.
Family History Of Sleep Apnea:
The people having a family history of sleep apnea are at higher risk of developing obstructive sleep apnea at any point in their lives. According to studies, the chances of developing sleep apnea almost doubles in the people having family members with the condition of sleep apnea.