A high risk of heart attack correlates with blood levels what?

A high risk of heart attack correlates with blood levels of low-density lipoprotein (LDL) cholesterol, often referred to as "bad cholesterol". LDL cholesterol is a type of fat (lipid) that can build up in the arteries, narrowing them and making it harder for blood to flow to the heart. This can lead to a heart attack if a blood clot forms and blocks a narrowed artery.

In contrast, high levels of high-density lipoprotein (HDL) cholesterol, often referred to as "good cholesterol", can help protect against heart attacks. HDL cholesterol helps remove LDL cholesterol from the arteries and transport it to the liver, where it can be broken down and removed from the body.

Therefore, maintaining healthy levels of LDL and HDL cholesterol is important for reducing the risk of heart disease and heart attacks.