Live Better

What causes low blood pressure?

Many people experience low blood pressure. When is it cause for concern?

What causes low blood pressure?

Firstly, what is blood pressure?

Your heart pumps blood around your body through blood vessels to help keep you alive.  The pressure of the blood against the blood vessels changes. Your blood pressure is a measure of the highest pressure and the lowest pressure to give two figures (highest over lowest). Blood pressure is measured in millimetres of mercury (mmHg).

Low blood pressure

Also referred to as hypotension, low blood pressure means your blood is circulating with a lower force than normal It is generally better to have a lower blood pressure than a higher one.

Watch Medibank’s Chief Medical Officer Dr Linda Swan discussing what causes low blood pressure.

What causes your blood pressure to drop?

Various issues and environmental factors can contribute to low blood pressure. These include:

  • Stress or anxiety
  • Dehydration
  • Medications
  • Pregnancy
  • Blood loss from an accident or after donating blood.

You might also feel a temporary drop in your blood pressure if you’re hungry or if you stand up too quickly.

Is low blood pressure cause for concern?

Low blood pressure can be a good thing – professional athletes and people who are extremely fit often report low blood pressure readings. It only becomes an issue if you think it’s having a negative impact on your body and produces symptoms. You should talk to your GP if you’re experiencing symptoms like dizziness, fainting or blurred vision.

Interested in reading more about blood pressure? Take a look at 4 health numbers you need to know or find out what causes other common health conditions like acne, dandruff and muscle cramps.

Recommended Reading

How alcohol affects your brain

Can a big night out really kill brain cells?

Read more

Is it time to see a lactation consultant?

Breastfeeding doesn't come naturally to everyone

Read more

Hard to swallow

Is your medication affecting your oral health?

Read more

Putting your testes to the test

You should. Doctor’s orders.

Read more

Signs you might have an STI

And what you should do about it

Read more

Does your child have a sleeping problem?

Recognise the signs and understand how to deal with them

Read more

How asthma affects your oral health

Know how to protect your teeth and gums

Read more

Why you should call your grandparents more often

How social isolation affects physical and mental health

Read more