Which one is more dangerous high BP or low BP Why?

High B.P. is more dangerous as we cannot prevent it like low B.P. If we have low B. P. we can prevent it by taking more salt contains. But high B.P. cannot be prevented by anything however there's a fewer chances by yoga but it cannot prevent totally. When B.P. becomes high our arteries burst and there's a chance for heart attack. So, high B. P. is dangerous than low B. P.