Very low blood pressure can quickly become a problem. When blood pressure drops too low there is the danger of the body not getting enough oxygen. Normal body functions like breathing, movement, and brain function can be impaired and tissue damage can occur. Rapid drops in blood pressure that threaten life can occur due to loss of blood, hemorrhage, or low body temperature due to cold exposure. Emergency treatment for these conditions raises blood pressure to a more normal level.
Postural hypotension is a temporary form of low blood pressure that causes light-headedness.
It occurs when standing up suddenly from sitting or lying. Dizziness or fainting may result. If symptoms persist, seek medical evaluation. This aids the return of blood flow from the legs. Avoid prolonged periods in the sun.