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Cortisol Blood Test
Cortisol Blood Test Contents
Results on my.medichecks health portal
Cortisol Blood Test

Cortisol Blood Test

A 9am cortisol blood test used to assess stress levels and to help diagnose disorders of the adrenal glands.

Is it for you?

Do you experience high levels of stress in your life which you think could be affecting your stress hormones? Or are you an athlete who is worried about over training syndrome? Perhaps you have symptoms which you think could be related to your adrenal function. If you want a quick finger-prick blood test to check your early morning levels of cortisol, then this is the right test for you.
Blood sample 1 test included 2 working days turnaround


  • You want to check your stress levels with a simple finger-prick blood test
  • You feel constantly run-down and think stress may be the cause
  • You are experiencing symptoms which you think might be related to your adrenal function
  • You are an athlete who wants to check for overtraining
A cortisol blood test should be taken in the morning to measure your cortisol levels close to waking. This is when cortisol levels are highest as your body prepares for the day ahead. Although cortisol is associated with stress, it is also important for many other functions including your immune function, blood pressure regulation and for controlling insulin to maintain blood sugar levels. Cortisol is a steroid hormone, produced by the adrenal glands. Cortisol's role in stress is well known; it is secreted in higher quantities during the body's 'fight or flight' response to danger, and leads to a number of bodily changes as your body prepares to deal with the perceived threat. Modern lives, with constant stimulation, work and social pressures can lead to cortisol being constantly high. 

A cortisol blood test will help you identify whether you are experiencing too much stress and should take measures to reduce it. Stress is not just mental and emotional, it can be physical too. Athletes who overtrain can have high levels of cortisol in their blood.

This test establishes the levels of cortisol in the blood at 9am and can help identify medical conditions such as Cushing's syndrome, which is caused by too much cortisol, or Addison's disease, which is caused by damage to the adrenal glands and is associated with too little cortisol.

Adrenal Hormones

This test must be taken between 8am and 10am. If you are tracking your results over time then it is vital that you always have your blood taken at the same time.

3 simple steps

  • Take the test

    Take the test - either using your kit or visit a clinic.
  • Post your sample

    Send your sample in the freepost pack to our fully accredited lab.
  • Get your results

    Get your doctor reviewed results on
Expert interpretation<br>
of your results

Expert interpretation
of your results

One of our team of doctors will review your results and give you personalised advice based on your medical history, lifestyle and health and fitness goals.

Your personal<br>
health centre

Your personal
health centre

Discover the easy way to track your health through our online portal, View your results with doctor's advice, monitor any changes over time and see the improvements you can make to your health with simple lifestyle changes.

Questions? Let us help

Questions? Let us help

Our customer care team are on-hand to help you find the test that's right for you. Get in touch via phone, live chat or email.

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Trusted by the NHS and private clinics alike, you can be sure of the highest testing standards from our partner laboratories

What our customers say

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Our tests are not a substitute for seeing your doctor, especially if you are suffering symptoms. Our doctors will interpret your results based on the information you have provided, but will not diagnose, consult or provide any treatment. You will be advised to see your doctor for any necessary follow-up action.