Lasting damage may have been done
A study published in the American Heart Association journal Circulati suggests smoking in front of children may increase their chances of developing dangerous carotid plaque later in adulthood.
For the study, researchers used data gathered on Finnish children between 1980 and 1983, and were able to identify which children grew up in smoking households by noting the amount of cotinine that had been found in their blood samples. (Exposure to smoke increases the presence of cotinine in the blood.)