high cholesterol means you have too much of a fatty substance called cholesterol in your blood. This can eventually build-up and cause blockages in the arteries.
When this happens it can lead to heart problems and strokes. There are two types of cholesterol found in the blood, which are often referred to as "good" and "bad" cholesterol.
Having "good" cholesterol, known as high-density lipoprotein, makes you less likely to experience blockages. Whereas "bad" cholesterol or low-density lipoprotein puts you at greater risk of this.Read more on msn.com