by 
The Curious Bag
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Cholesterol plays a vital role in your health, as it works to sustain bodily functions and produce cell membranes and various hormones. Cholesterol is naturally present in the bloodstream and cells. Carriers, know as lipoproteins, are responsible for carrying cholesterol to and from the cells in the body. High-density lipoprotein (HDL) is known as the "good" cholesterol.
Significance
Simple blood tests are used to determine a person's overall cholesterol level. In order to measure a total cholesterol count, a person's high-density lipoprotein (HDL), low-density lipoprotein (LDL), Lp(a) cholesterol, and triglycerides are calculated.
Identification
HDL is responsible for carrying approximately one-fourth to one-third of the total blood cholesterol in the body.
Function
As noted on MedicineNet, HDL cholesterol extracts cholesterol particles from the artery walls and transports them to the liver to be disposed through bile. Additionally, HDL interferes with the accumulation of LDL cholesterol particles in the artery walls.
Features
HDL cholesterol is known as "good" cholesterol, because high levels of HDL seem to protect against heart attack. (Ref. 2.)
Benefits
A person with high HDL levels will have a lower amount of LDL cholesterol. Elevated LDL levels can lead to a number of health complications.
Further Advantages of High HDL
Additionally, HDL may protect the heart and blood vessels in other ways, including anti-inflammatory and anti-clotting effects. (Ref. 2.)
Source:
MedicineNet: Why is HDL the good cholesterol?
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