According to NetDoctor, a high cholesterol count is a level of 5 mmol/l and above. Cholesterol is a type of body fat, and high levels of cholesterol in the body is called hypercholesterolaemia.
NetDoctor explains that a high cholesterol count can be caused by genetic or environmental factors. If it runs in the family, it is called familial hypercholesterolaemia. On the other hand, diets that contain high levels of saturated fats are also found to cause this condition.
According to NetDoctor, high levels of cholesterol may result to cardiovascular diseases and atherosclerosis, which is the buildup of fats in the walls of the arteries. Moreover, these health problems can be prevented by quitting smoking, eating a healthy diet, maintaining a healthy body weight, decreasing alcohol intake and exercising on a regular basis.