A chemical stress test uses medications to make your heart beat faster and widen your blood vessels, simulating how your heart responds to exercise when you can’t use a treadmill or bike. The test can ...

A 15-year champion of consumer affairs, Yvette leads on telecoms content at Which?, helping consumers navigate the market and exposing bad practice. Run a quick test to see whether you're getting the ...

A magnesium blood test checks if your magnesium levels are too high or too low. Symptoms, like muscle weakness or irregular heartbeat, might mean your magnesium levels aren’t right. A magnesium blood ...