Prediabetes, Prehypertension, and Other "Pre" Conditions

Shadow syndromes are subtle hints from your body that trouble may be brewing in your heart, your bones, your joints, or elsewhere. Some have names, like prediabetes and osteopenia. Others are familiar phrases: a bum knee ; borderline cholesterol. Look at these "pre" conditions like the "check engine" light going on in your car: They alert you to possible trouble while there's still time to fix it.