Carotid artery blockage develops as you age. Ten percent of adults between the ages of 80 and 89 suffer from carotid artery disease, but only one percent of adults between 50 and 59 suffer from it.
Also, blockage in the carotid artery is higher in people who smoke, have diabetes, high cholesterol, or high blood pressure. People who do not exercise and have poor nutrition are at a higher risk of developing carotid artery disease.
People who have a family history of Atherosclerosis (hardening of the arteries) or stroke are also at higher risk for developing carotid artery blockage. In addition, men are more likely to develop the disease than women.