Longevity

Non-HDL Cholesterol Blood Test: Normal Ranges, ...

What Is Non-HDL Cholesterol? Non-HDL cholesterol is a calculated value that represents the total amount of "bad" cholesterol circulating in your blood. It is derived by subtracting your HDL (high-density...

Mercury Blood Test: Normal Ranges, Causes & Wha...

What Is Mercury? Mercury is a naturally occurring heavy metal that exists in three primary forms: elemental (metallic) mercury, inorganic mercury compounds, and organic mercury - most commonly methylmercury. Like...

Hepatitis B Surface Antigen Blood Test: Normal ...

What Is Hepatitis B Surface Antigen? Hepatitis B surface antigen (HBsAg) is a protein found on the outer surface of the hepatitis B virus (HBV). It is the earliest detectable...

Magnesium Blood Test: Normal Ranges, Causes & W...

What Is Magnesium? Magnesium is the fourth most abundant mineral in the human body and the second most abundant intracellular cation (after potassium). It serves as an essential cofactor in...

Hepatitis B Surface Antibody Blood Test: Normal...

What Is Hepatitis B Surface Antibody? Hepatitis B surface antibody (anti-HBs) is a protective protein produced by your immune system in response to the hepatitis B surface antigen (HBsAg) -...

Luteinising Hormone (LH) Blood Test: Normal Ran...

What Is Luteinising Hormone? Luteinising hormone (LH) is a gonadotrophin - a hormone produced by the anterior pituitary gland in the brain that plays a central role in reproductive function....