Hypopnea often happens at night while you sleep, but it can also occur during the hours that you’re awake. There are two main types of hypopnea, but they are hard to distinguish clinically from ...

In this article, we look at the effects of hypopnea, its symptoms and causes, and how it can be treated. Causes. Share on Pinterest Risk factors associated with hypopnea include obesity and smoking.

Symptoms. Hypopnea can cut off your nighttime breathing by a third or more. That means less oxygen gets carried around your body. This can lead to symptoms that are similar to apnea.