slide for his kids. that looks cool. depending where you live, there is a chance that every breath you take is like doing cocaine when it comes to your heart's health. we are looking at air pollution as a heart attack trigger. what will it take for the u.s. to cut its dependence on foreign oil? have your say in our talk back segment. sports and head injuries. concussions can cause serious problems, even death. >> it came as a complete shock to me. i didn't know he was struggling with it. and i didn't know he was in this bad of shape. ♪ do you believe in magic?