Disruptions of blood circulation to the brain may result in a stroke. It occurs in two forms, both potentially life-threatening. If you or someone with you exhibits signs of a stroke, do not delay.

Not to B-negative, but your blood type could offer a clue to your risk of having a stroke before 60. “The number of people with early strokes is rising,” said Dr. Steven J. Kittner ...

But there are also some other potentially lesser known types of stretching, such as PNF stretching. So if you've come across PNF stretching and it piques your interest, what do you need to know?