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Key Signs and Symptoms of Low Blood Pressure

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People frequently talk about high blood pressure, as it can lead to heart attacks, strokes and kidney failure. But low blood pressure, also known as hypotension, can also cause damage to your body.

While a blood pressure reading of 140/90 mm Hg or above is considered high, a reading of less than 90/60 mm Hg is considered low.

Everyone’s blood pressure drops at one time or another and doesn’t cause any noticeable symptoms. For instance, the transition from sitting or lying down to standing can cause a drop in blood pressure. Some people may experience low blood pressure right after eating or from prolonged standing.

However, certain conditions can cause prolonged periods of hypotension that can be bad for your health.

Such conditions include pregnancy, significant blood loss due to an injury, poor circulation caused by a heart condition, weakness that accompanies dehydration, dieting to lose weight, anaphylactic shock, infections of the bloodstream and endocrine disorders, such as diabetes, adrenal insufficiency and thyroid disease.

Certain medications like beta-blockers, diuretics, tricyclic antidepressants and erectile dysfunction drugs can also cause hypotension. A deficiency of the essential vitamins B12 and folic acid can cause anemia, which in turn can lead to low blood pressure.

Having persistent low blood pressure is not good. If the blood pressure gets severely low, your body will not receive enough oxygen to carry out its normal functions. A decreased oxygen level can lead to impaired functioning of the heart and brain as well as cause difficulty breathing.

In certain cases, people with low blood pressure can lose consciousness or go into shock (when the organs shut down). This makes it more important to be aware of the signs and symptoms of low blood pressure, so that timely treatment can be provided.

signs and symptoms of low blood pressure

Here are the key signs and symptoms of low blood pressure.

1. Dizziness or Light-Headedness

One of the key symptoms of low blood pressure is dizziness and light-headedness.

dizziness due to low blood pressure

Low blood pressure causes poor blood flow to the brain. This reduces the oxygen supply to the brain and makes you feel dizzy and light-headed.

This is often associated with a sudden position change, such as standing too quickly after waking up in the morning.

If your blood pressure is severely low, dizziness can cause fainting, too.

2. Fatigue

Low blood pressure can affect your energy level and cause fatigue. The flow of blood plays a key role in the production of energy, as it provides the body with oxygen and necessary nutrients.

low bloop pressure causes fatigue

The mitochondria within the cells need nutrients for energy production. When there is a disruption in the blood flow due to a drop in blood pressure, it disrupts the energy creation process, which in turn causes fatigue and tiredness.

Even sleep disruptions caused by this change in blood volume can add to your fatigue.

Having super low energy is never a good sign, so see your doctor.

3. Rapid Heart Rate

If you experience a rapid heart rate or palpitation, it may be due to a drop in your blood pressure level.

rapid heart rate low blood pressure

Poor blood flow to the heart causes it to contract irregularly. If the heart is not getting filled with the right amount of blood, it compensates by beating faster.

It can also cause your pulse and breathing to speed up. You may even notice frequent changes in body temperature.

When it comes to your heart, any abnormal change should be checked by your doctor.

4. Cold, Clammy Skin

cold clammy skin low bp

Having cold, clammy and pale skin (not due to strenuous physical activity) could be another sign of low blood pressure, especially when accompanied by rapid heartbeat and shallow breathing.

This happens when there is not enough blood circulating in your body due to a drop in blood pressure.

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