People with high blood cholesterol are very prone to heart disease. High cholesterol levels are common to people with more than 50 years of age, people with weight problems, people with gastrointestinal disorders, and people with diabetes. High blood cholesterol levels may be the result of overproduction of the substance (due to liver dysfunction) or the inability of the body to eliminate it. However, apart from physiological factors that allow the accumulation of cholesterol in the body, also there is many other external factors that contribute to the accumulation of cholesterol: inappropriate diet, sedentary lifestyle, tobacco and alcohol abuse. Although the body is able to produce the amount of cholesterol needs to maintain its normal activity, a high cholesterol diet can significantly increase blood cholesterol levels. Animal foods are rich in cholesterol and saturated fats that are very harmful to the body when consumed in large quantities. You must replace meat and dairy products, cereals and vegetables to maintain normal cholesterol levels. Carbohydrates (sweets) also allow cholesterol to build within the body and therefore should be avoided.Good physical exercise is very important to keep blood levels of cholesterol in the blood under control. Regular physical exercise improves blood circulation and helps the Elimination of excess cholesterol. Exercise often and you will be able to maintain normal cholesterol levels and weight loss.Smoking is considered a risk factor for heart disease. Smoking helps cholesterol deposited within the arteries, which can cause obstruction, disrupting the normal flow of blood. If you have high blood cholesterol levels and you are a smoker, it is recommended to stop smoking. Alcohol also contributes to the buildup of cholesterol in the blood and therefore should be avoided.Within normal limits, cholesterol is very important for the Agency. The liver produces cholesterol (a waxy, viscous substance) in small quantities, which is mandatory in certain physiological processes. Without cholesterol, the body is unable to produce hormones (testosterone and estrogen), vitamin D (strengthens the tissues of the bones) and bile (a very important substance used in digest FAT). Although in small quantities of cholesterol is beneficial for the body, too much can cause much damage. Cholesterol is not soluble in the blood and therefore accumulates and deposits in the arteries, lowering the normal blood circulation. High cholesterol levels significantly increase the risk of cardio-vascular diseases and even heart failure.It is very important to know that there are several types of cholesterol. When you have verified their cholesterol levels, usually they are told the level of total cholesterol. Total cholesterol level consists of high density lipoprotein (HDL), low density lipoprotein (LDL) and very low density lipoprotein (VLDL). Low density lipoprotein is also known as “bad cholesterol” and this substance may be harmful to the human body when it accumulates in excess. Bad (LDL) cholesterol builds up in arteries and disturbs the normal blood circulation. Good cholesterol (HDL) is benign for the Agency, which collects the bloodstream low-density lipoprotein and brings to the liver.To maintain a healthy diet and exercising regularly, you can raise their levels of good cholesterol, while reducing the levels of bad cholesterol. Making improvements in their lifestyle, you can maintain their total cholesterol levels in check.