Cholesterol is one of those health terms we hear often but rarely think about until a test report surprises us. It is a waxy, fat-like substance present in our blood and is essential for making ...

Cholesterol is a form of fat we need. It helps make the outer membranes of our bodies' cells stable. But for decades, doctors have known that people with high total cholesterol levels are more likely ...

Off-the-shelf medical tests for health problems like high cholesterol, vitamin deficiency and fertility are becoming increasingly popular – but new research suggests they may not be fit for purpose.