Before you go on to understand low blood pressure, it is important to discuss what blood pressure really is. Blood pressure is the pressure with which our blood flows in blood capillaries.
There are two types of pressure numbers noted down while measuring the blood pressure – the systolic pressure and diastolic pressure. Systolic pressure is the blood pressure when the heart beats while pumping the blood and diastolic blood pressure is the blood pressure when the heart is resting between the beats. The ideal blood pressure is 120mmHg (systolic) / 80mmHg (diastolic).
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So, if a person’s blood pressure is around the ideal blood pressure then it’s normal. Please understand that our blood pressure is higher when we wake up, it varies throughout the day when we do different activities. A person’s most accurate blood pressure is measured when he has not eaten anything or not doing any activity for at least 30 minutes.
What is low blood pressure or hypotension?
A person can occasionally have a blood pressure lower than the normal but if the blood pressure numbers are consistently lower than 90/60 mmHg. Please understand that sudden decrease or increase in blood pressure does not indicate any disease. Our blood pressure generally increases after intense physical activity and can drop when a person is rising from a down position.
Well, a lot of people have low blood pressure and they don’t even know about it. A blood pressure little lower than the normal blood pressure is not generally a concern but if it starts showing some symptoms then you have to pay attention to it.
A very low blood pressure can have many health problems. When the blood is flowing with low pressure then it won’t reach all of the body organs or even if the blood is reaching all the body parts it might not be sufficient.
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Causes of low blood pressure
The exact causes of low blood pressure are not found yet but there are many factors which are associated with low blood pressure. We have mentioned the main causes of low blood pressure here :
- Heart problems – Heart conditions can cause low blood pressure if the heart is not able to pump sufficient blood through the capillaries.
- Thyroid problems
- Accident/Blood loss
- Lack of nutrients in diet
- Medications – there are some medications that can cause low blood pressure
- Dehydration
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Symptoms of low blood pressure
As I just told you, low blood pressure does not always show symptoms. A person might have low blood pressure and never know. However, if the person shows any of the following symptoms then he/she should see a doctor immediately. The symptoms of low blood pressure include the following :
- Fainting
- Dizziness
- Pregnancy
- Chest pain
- Light-headedness
- Nausea
- Blurred vision
- Fatigue
- Depression
- Unusual thirst
- Shallow breathing
- Pale skin
- migraine
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