Obstructive sleep apnoea puts a strain on the heart, too
Longer nocturnal respiratory events in patients with obstructive sleep apnoea (OSA) cause higher immediate heart rate variability, and greater changes in beat-to-beat intervals are associated with reduced daytime alertness, according to new research from the University of Eastern Finland. Obstructive sleep apnoea affects approximately 1 billion people worldwide. It is one of the most prevalent sleeping disorders, putting a great strain on national economies and on public health. Nocturnal respiratory events, be they complete or partial blocking of the airways, often cause repeated oxygen