coronary heart disease is a condition where the coronary arteries become blocked with fatty deposits blocking blood trying to get to the heart
CHD causes the arteries to become narrow so blood flow is restricted and there's a lack of oxygen to the heart muscle - can result in heart attack
stents are tubes that are inserted inside the arteries to keep them open so blood can pass through to the heart muscle to keep the person alive
stents lower the risk of heart attack and are effective for a long time however, they may cause blood clots near the stents and there is a risk of infection and heart attack in surgery
statins are a drug that reduce levels of 'bad' cholesterol in the blood that can cause heart problems, having too much of this cholesterol can cause a build up of fatty material in the arteries - leads to CHD
by reducing the amount of 'bad' cholesterol in blood, statins can reduce the risk of strokes, CHD and heart attacks. statins can increase the amount of 'good' cholesterol in blood
statins however may cause neurodegeniative problems, such as confusion, dizziness, and tremors