Why Is Bad Cholesterol Bad?
Normally,
LDLs transport
cholesterol from your liver and deliver it to the tissues that need it. But if you have a lot of bad cholesterol left over after all of your tissues have been taken care of, the LDLs will "let go" of the extra cholesterol while traveling through your blood. This bad cholesterol can build up on the walls of your arteries (blood vessels that carry blood from the heart to other parts of the body). This buildup of cholesterol is called
plaque. Over time, plaque can cause narrowing of the arteries. This is called
atherosclerosis, or
hardening of the arteries.
How Much Bad Cholesterol Is Dangerous?
Bad cholesterol is the main source of damaging buildup and blockage in the arteries. The more bad cholesterol you have in your blood, the greater your risk of
heart disease. But how much is too much?
In general, the higher your bad
cholesterol level and the more risk factors you have, the greater your chances of developing heart disease or other
effects of high cholesterol. Treatment for
high cholesterol (also known as hypercholesterolemia or hyperlipidemia) focuses on lowering your bad cholesterol level enough to reduce your chances of developing these conditions. There are two main ways to lower your bad cholesterol: