Before venoplasty for CCSVI, Jeff had sleep apnea. He would wake up gasping for air every hour or so. It is now gone. He sleeps deeply, dreams and wakes refreshed. Why? Oxygenation and blood flow.

"And on a cellular level, the momentary drop in oxygen that occurs when a sleeping person stops breathing could lead to brain changes by triggering stress or inflammation, says Anne Wheaton, Ph.D., the lead author of the study and an epidemiologist in the CDC's division of population health."


Sleep disorder multiplies depression risk - CNN.com
www.cnn.com
People with sleep apnea, a breathing disorder that causes frequent sleep disturbances, often feel tired and unfocused during the day. But that may not be the only fallout: New research suggests the disorder also dramatically increases the risk of depression.