Blood pressure 81/54mmHg is very low, this hypotension is seen in two states: 1, the state of hypotension caused by genetic physical factors, this is a benign hypotension, generally has no impact on the life expectancy of the human body or quality of life. However, in some cases this hypotension may lead to dizziness or even blackness when the body position changes, and patients must be aware of this. 2. pathological, mainly seen in serious heart disease strikes leading to hypotension, such as severe heart failure or bleeding, infection, and other conditions. This kind of hypotension is pathological and requires active correction of the original disease in order to restore the blood pressure to the normal range. In the case of a normal healthy person with a low blood pressure state, the main thing is to eat regularly, exercise appropriately, improve heart and lung function, and at the same time, you can consume more salt appropriately to raise your blood pressure.