in terms of the relationship to sports. it still happens. i will say that once you get to 35 and older. the likelihood of having cardiac arrest is more likely associated with blockages in the blood vessels that supply blood to the heart. i will show you really quick here, sara. you have blood vessels on top of the heart. they can become blocked. you can develop clots in those. as you get older, that tends to be the more common problem. it can lead to muscle and in the heart tissue dying. that can lead to problems with the heart. in younger people, it can be a structural abnormality with a heart, heart muscle problem, an electrical problem with the heart. or inflammation that is underlying. one of those things and we don t know yet. i m sure that s what they re investigating right now. i should just quickly point, out he was released from the icu, and intensive care unit, very quickly. that is a really good sign. diamond that he was stable enough, they felt like they had things under co