Public concern about concussions has mostly centered around football and other male-dominated sports. But another population experiences concussions at an even higher rate...female athletes. Today, some alarming research on the frequency, diagnosis and treatment of concussions in women and girls.
Then, we may be on the verge of the next major milestone in long-distance running: the sub two-hour marathon - that's if one scientist has his way. So, can new technology, training and even genetic selection make people run long distances even faster?
