Latest Issue of Science News


Feature

A Gasping Heart

Cardiac quirk may worsen sleep apnea, invite altitude sickness

A common imperfection in the structure of the heart may worsen breathing difficulties in people who have sleep apnea and provoke a life-threatening condition called high-altitude pulmonary edema in mountaineers who ascend too quickly. In both scenarios, new studies suggest, the cardiac abnormality contributes to a rapid drop in the blood's oxygen content.

Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.

X
This article is available only to subscribing members. Join SSP today or Log in.