Smoking is known for causing problems related to heart disease and this is because nicotine constricts the blood vessels. Carbon is also a factor, as it damages the inner lining of the blood vessels, and makes them more predisposed to atherosclerosis.

It has also been proven through research that smokers are at a higher risk for heart attacks than non-smokers. This is one of the reasons why cigarette packages in some countries come with warning labels that warn of heart disease related dangers.

Smoking combined with age also increases the risk of heart related diseases and risk for heart attack, and it leads to high blood cholesterol, along with high blood pressure. Smoking decreases oxygen to the heart and tissues in the body, it decreases the HDL cholesterol and damages the cells that line the arteries.

Women that smoke and also take oral contraceptives increase their chance of heart disease, heart attack, angina and blood clotting.