It is clear that smoking is related to increased risk of heart attack, stroke and chronic obstructive pulmonary disease (COPD). Studies now show that second hand smoke also increases these risks.
A study by Angela M. Malek, PhD, from the Medical University of South Carolina published online June 23 in the American Journal of Preventive Medicine looked at secondhand smoke exposure in 21,743 participants . The risk for stroke increased by 30% in those exposed.
Secondhand smoke is also linked to atherosclerosis, heart disease and heart attack. “An increased risk of stroke was observed for never smokers (HR=1.42, 95% CI=1.05, 1.93); former smokers (HR=1.72, 95% CI=1.33, 2.22); and men and (cigarette-smoking) women with spouses who smoke” (Malek, et al).
Avoid exposure to first hand or second hand smoke. Breathe a breath of fresh air.
The full text study may be found at: http://www.ajpmonline.org/article/S0749-3797(15)00198-1/fulltext