Fatigue

It's normal to feel tired sometimes. But if you're tired all the time and do not know why, it could be a sign of a problem.

Causes of tiredness and fatigue

Common causes of tiredness and fatigue include:

  • not getting enough sleep or finding it hard to get to sleep (insomnia)
  • an unhealthy lifestyle (such as having an unhealthy diet and not getting much exercise)
  • stress, depression and dealing with life challenges, such as bereavement or looking after a new baby
  • hormonal changes (such as during puberty, pregnancy or the menopause)
  • some illnesses, like glandular fever and COVID-19
  • some medical treatments and medicines, like chemotherapy, which can cause drowsiness for a while

But if you cannot explain why you're tired and it's been going on for a while and not getting any better, it may be a sign of a medical condition.

Your symptoms might give you an idea of what's causing your tiredness or fatigue. But do not self-diagnose – see a GP if you're worried.

Things you can do to help with tiredness or fatigue

There may be things you can do to help with your tiredness or fatigue.

More information

Treatment for tiredness or fatigue

Treatment for tiredness or fatigue depends on the cause.

Possible treatments include:

A GP may refer you to a specialist if they do not know the cause of your tiredness or fatigue.

You may need tests, such as blood tests to check for anaemia, diabetes or hyperthyroidism.