Conduction Pathways News Today

>> its hard to speculate. we dont know. their heart is big, active, busy. the heart is essentially a muscle. this is a very large muscle. there are complex conduction pathways on the heart. for some reason, we know this is a rare event but it is slightly more likely to happen in athletes who are very active and those who are not professional athletes. >> harris: you are the doctor, im the journalist. i read a lot. we see this more in males than females. is that the way its reported, or is that t...