Some "Good" Cholesterol May Be Bad For Heart

It appears that in some cases, high-density lipoprotein (HDL) cholesterol, the so-called "good" cholesterol, does not protect against heart disease, and may even be harmful. A new study suggests a subclass of HDL that carries a particular protein is bad for the heart. Previous studies have shown that high levels of HDL cholesterol are strongly linked to low risk of heart disease...