Cholesterol is a type of fat that exists in all animals on earth and are the basic building blocks of cells.

There are multiple types of cholesterol. We know two of them as “Low Density Liptoprotein” and “High Density Liptoprotein”.

The cholesterol we don’t want too much of is LDL, for when too much of these get into your arteries they can cling to the artery walls and slowly build up a plaque, narrowing the arteries and cause hardening of the blood vessels and increasing changes on blood cloths, hearth attacks and strokes.

A normal level of cholesterol would be less than 200 milligrams per deciliter of blood; above 240 mg/dL it becomes dangerous.
This is the total amount of cholesterols, amongst them LDL and HDL.
When the amount of LDL of that total amount is above 159, it becomes dangerous.