Addison's disease
Addison's disease is a condition that makes people feel very weak and tired. Learn more about its symptoms, causes, diagnosis and treatment.
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Adrenal fatigue
Adrenal fatigue is a concept referring to a variety of symptoms. Find out about the causes of fatigue and how to treat it.
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Adrenal glands
The adrenal glands are two endocrine glands sitting on top of each kidney. They form part of the body's hormonal system. They produce several hormones that are involved in controlling your blood pressure, metabolism and your body's response to stress.
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The role of cortisol in the body
Cortisol is a stress hormone with many important functions. Find out what happens if you have too little or excess cortisol and about corticosteroid drugs.
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