- By Laurel Kelly
Consumer Health: Secondhand smoke and heart attack risk — what’s the connection?
You don't smoke because you understand the dangers, but what about smoke you inhale involuntarily? Secondhand smoke includes the smoke that a smoker exhales and the smoke that comes directly from the burning tobacco product.
Exposure to secondhand smoke also increases your risk of heart disease by about 25% to 30%. And if you've had a previous heart attack or have been diagnosed with heart disease, it's especially important to avoid secondhand smoke.