Low blood pressure or hypotension refers to the fall in blood pressure below normal. It is a condition in which the action of the heart, in forcing the blood through the arteries, is weak. This is a direct outcome of a weakened and devitalized system.

• Faulty nutrition, malnutrition: The most important cause of low blood pressure is faulty nutrition. It makes the tissues forming the walls of the blood vessels over-relaxed, and flabby or stretched. This results in less supply of oxygen and nutrients to the tissues. Malnutrition can result from a diet deficient in calories, proteins, vitamin C, or almost anyone of the B vitamins.
• Loss of blood, slow internal bleeding: Sometimes the blood pressure falls rapidly because of loss of blood. Low blood pressure may also develop gradually because of slow bleeding in the gastrointestinal tract, kidneys or bladder.
• Emotional instability: Emotional problems are a far more frequent cause of low blood pressure. To a lesser degree, prolonged disappointment and frustration may result in a subnormal blood pressure.

• Dizziness or lightheadedness.
• Fainting.
• Lack of concentration.
• Blurred vision.
• Cold, clammy, pale skin.
• Rapid, shallow breathing.
• Fatigue.
• Depression.
• Thirst.

• Beet root: The juice of raw beet root is one of the most effective home remedies for low blood pressure. The patient should drink a cup of this juice twice daily for treating this condition. Considerable improvement will be noticeable within a week.
• Salt: The use of salt is valuable in low blood pressure. Until the blood pressure reaches normal levels through proper dietary and other remedies, it is essential that the patient should take salty foods and half a teaspoon of salt in water daily.

• Drink more water, less alcohol: Alcohol is dehydrating and can lower blood pressure, even if you drink in moderation. Water, on the other hand, combats dehydration and increases blood volume.
• Follow a healthy diet: Get all the nutrients you need for good health by focusing on a variety of foods, including grains, fruits, vegetables, and lean chicken and fish. If your doctor suggests increasing your sodium intake but you don't like too much salt on your food, try using natural soy sauce — a whopping 1,200 milligrams of sodium per tablespoon — or adding dry soup mixes, also loaded with sodium, to dips and dressings.
• Go slow: You may be able to reduce the dizziness and lightheadedness that occur with orthostatic hypotension by taking it easy when you move from a prone to a standing position. Instead of jumping out of bed in the morning, breathe deeply for a few minutes and then slowly sit up before standing. Sleeping with the head of your bed slightly elevated also can help fight the effects of gravity. If you begin to get symptoms while standing, cross your thighs in a scissors fashion and squeeze or put one foot on a ledge or chair and lean as far forward as possible. These maneuvers encourage blood to flow from your legs to your heart.
• Eat small, low-carb meals: To help prevent blood pressure from dropping sharply after meals, eat small portions several times a day and limit high-carbohydrate foods such as potatoes, rice, pasta and bread. Drinking caffeinated coffee or tea with meals may temporarily raise blood pressure, in some cases by as much as 3 to 14 millimeters of mercury (mm Hg). But because caffeine can cause other problems, check with your doctor before investing in a fancy espresso maker.