Your doctor says everything looks fine, but you still feel terrible. The problem might not be your health but how labs define “normal.” Understanding the difference between normal and optimal could ...

Study suggests TSH levels up to 5.56 mIU/L may reflect normal physiological aging in adults aged 65–84, rather than clinical hypothyroidism.

You receive a phone call: the results from routine blood tests show a “low white cell count”. Your doctor explains that more investigations are necessary, perhaps a referral to the haematologists.

Laboratory testing supports most clinical decision-making; however, the concept of a fixed “normal” value is theoretical. Studies have suggested that approximately 7 out of 10 clinical decisions rely ...

Your blood serves numerous roles to maintain your health. To carry out these functions, blood contains a multitude of components, including red blood cells that transport oxygen, nutrients and ...

The sex of an individual is typically assigned at birth based on the appearance of the external genitalia. Chromosomal testing can determine whether a person is biologically male (1 X chromosome and 1 ...