Secondhand smoke quickly affects blood vessels

"Cardiovascular function can be affected by as little as 10 minutes exposure to secondhand cigarette smoke and other air pollutants such as wood smoke and smoke from cooking oil, say U.S. researchers. There's increasing evidence that higher levels of air pollution are associated with an increase in heart attacks and deaths, according to background information in an American Physiological Society news release. Smoke pollutants contain fine particles that trigger responses in heart and blood vessels." - Forbes