Longevity

Urea Blood Test: Normal Ranges, Causes & What Y...

What Is Urea? Urea is a waste product formed in the liver when protein is broken down. It is carried in the blood to the kidneys, where it is filtered...

Free T3 (Triiodothyronine) Blood Test: Normal R...

What Is Free T3 (Triiodothyronine)? Free T3 (free triiodothyronine) is the active, unbound form of the thyroid hormone triiodothyronine. While the thyroid gland primarily produces T4 (thyroxine), most T3 is...

Triglycerides Blood Test: Normal Ranges, Causes...

What Are Triglycerides? Triglycerides are the most common type of fat (lipid) in your blood. When you eat, your body converts any calories it doesn't need to use straight away...

Transferrin Saturation Blood Test: Normal Range...

What Is Transferrin Saturation? Transferrin saturation (TSAT) is a calculated percentage representing how much of the body's iron-transport protein (transferrin) is currently carrying iron. It is calculated as: TSAT =...

Transferrin Blood Test: Normal Ranges, Causes &...

What Is Transferrin? Transferrin is a glycoprotein produced by the liver that serves as the primary iron transport vehicle in the blood. Each transferrin molecule can bind two iron atoms,...

Tissue Transglutaminase IgA (tTG) Blood Test: N...

What Is Tissue Transglutaminase IgA? Tissue transglutaminase IgA (tTG-IgA) is an antibody directed against the enzyme tissue transglutaminase (tTG) - an enzyme found in the intestinal wall that plays a...