High cholesterol (hypercholesterolemia) can be inherited, but it's often the result of unhealthy lifestyle choices, and thus preventable and treatable. A healthy diet, regular exercise and sometimes medication can go a long way toward reducing high cholesterol.
High cholesterol typically doesn't cause any symptoms. In the vast majority of cases, the only true symptoms it may cause are emergency events. For instance, a heart attack or stroke can result from the damage caused by high cholesterol over time. These events typically don’t occur until high cholesterol leads to the formation of plaque in your arteries.
High-Density Lipoprotein (HDL) protects against heart disease, so the higher HDL levels, the better. A level less than 1.0 mmol/L is low and is considered a risk factor. The risk of heart disease is lower when HDL level is 1.0 mmol/L or more. Women usually have higher HDL cholesterol level than men. In addition, higher than normal levels of triglyceride places you at a greater risk of developing cardiovascular disease.