Tiredness and 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.
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On this page
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Medicines commonly prescribed for Tiredness and fatigue
For informational purposes only. Always consult a doctor before taking any medication.
Dosage form: MODIFIED-RELEASE TABLET, 80 mgActive substance: ferrous sulfateManufacturer: Pierre Fabre Iberica S.A.Prescription requiredDosage form: INJECTABLE, 10 mg hydroxocobalamin/2 mlActive substance: hydroxocobalaminManufacturer: Aristo Pharma Iberia S.L.Prescription requiredDosage form: MODIFIED-RELEASE TABLET, 105 mgActive substance: ferrous sulfateManufacturer: Teofarma S.R.L.Prescription required
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.
| Symptoms | Possible cause |
|---|---|
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Tired during the day because of waking up at night, making gasping, snorting or choking noises at night and loud snoring |
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Lack of energy, noticeable heartbeats (heart palpitations), shortness of breath and pale skin |
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Very tired, feeling very thirsty, peeing more often than usual (particularly at night), weight loss |
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Tired all the time, finding it hard to stay still, feeling nervous, anxious and irritable, muscle weakness |
Overactive thyroid (hyperthyroidism) |
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Extreme fatigue for at least 3 months (making it very hard to do daily activities), problems with thinking, memory and concentration, flu-like symptoms |
Myalgic encephalomyelitis or chronic fatigue syndrome (ME/CFS) |
Things you can do to help with tiredness or fatigue
There may be things you can do to help with your tiredness or fatigue.
Do
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have a healthy diet and exercise regularly
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try to stick to the same sleep times and aim for 6 to 9 hours of sleep
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try to relax a couple of hours before your sleep time (read, or listen to music or a podcast)
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have a relaxing sleeping area (not too bright, noisy or warm)
Don’t
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do not smoke
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do not drink too much alcohol
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do not eat, have caffeine or exercise in the couple of hours before sleep
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do not use smartphones or screens in the hour before sleep
More information
- Better Health: how to fall asleep faster and sleep better
- Better Health: dealing with life's challenges
See a GP if:
- you've been feeling tired for a few weeks and you're not sure why
- your tiredness affects your daily life
- you feel tired and have other symptoms, such as weight loss or mood changes, or you've been told you're making gasping, snorting or choking noises when you're asleep
Treatment for tiredness or fatigue
Treatment for tiredness or fatigue depends on the cause.
Possible treatments include:
- talking therapies, such as cognitive behavioural therapy (CBT)
- advice on how to get better sleep
- advice on how to relax or change your lifestyle
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.
