First-responders and others exposed to Sept. 11 dust may be more susceptible to heart disease triggered by other health conditions they acquired from the disaster, researchers at Mount Sinai Medical Center announced March 20.
As principal investigator for the WTC CHEST program, Dr. Mary Ann McLaughlin studies the pulmonary effects of inhaling 9/11 particulate matter. Her group examined more than 800 Sept. 11 first-responders between January 2011 and September 2013, and found links between breathing in the toxic dust and obstructive sleep apnea, which causes the upper airways to become blocked during sleep. The condition can strain the cardiovascular system and lead to high blood pressure and heart arrhythmias.
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