American Heart Association

Extreme heat may spark heart attack among firefighters

By AMERICAN HEART ASSOCIATION NEWS

Firefighters’ exposure to extreme heat and physical exertion may trigger blood clots and impair blood vessel function — increasing risk of heart attack, according to a Scottish study.

Cardiovascular events are the leading cause of death among firefighters, representing about 45 percent of on-duty fatalities annually in […]

Secondhand marijuana smoke damages blood vessels more than tobacco smoke

By AMERICAN HEART ASSOCIATION NEWS

Secondhand marijuana smoke may damage your blood vessels even more than tobacco smoke.

In a new study, arteries in rats that inhaled secondhand marijuana smoke for one minute carried blood less efficiently for at least 90 minutes. Similar exposure to secondhand tobacco smoke caused blood vessel […]