Low blood pressure is called hypotension and is recorded at a reading of anything less than 90/60 mm/Hg. The two number represent the systolic and diastolic pressure of the blood, ie. the pressure when leaving and returning to the heart respectively.

The causes of low blood pressure are many, but it is often associated with pregnancy, hormonal problems, heart failure, dilation of the blood vessels, and liver disease. Sudden drops of pressure are more dangerous to one's health and may result in death. The most probable causes of a sudden change in blood pressure are bleeding, change of body temperature, sepsis, heart disease, and an adverse reaction to medication.

Prevention largely amounts to generally improving one's health through regular exercise and rest.

Symptoms for someone who has low blood pressure generally will complain about the situation often dizziness, frequent yawning, sometimes perceived lack of clear vision, especially after a long sit and walk, a cold sweat, feel tired powerless, even to fainting.

There are several things you can do to prevent low blood pressure:
- Drinking water in considerable amounts of 8 to 10 glasses per day, an occasional cup of coffee in order to spur increased heartbeat so that the blood pressure will increase
- Eat foods that contain adequate levels of salt
- Exercise regularly such as walking in the morning for 30 minutes, at least 3 times a week can help reduce the onset of symptoms
- Provision of drugs to increase blood hypotension occurs only when the symptoms are felt really disrupt daily activities, other than that doctors will only provide vitamins.

Hope it will help. Thank you.

Thank you.