The olive oil contains 70% monounsaturated fatty acid. As a result, it lowers cholesterol accumulation in the blood and reduces heart problems. Extra virgin olive oil also helps reduce the oxidation effects of LDL cholesterol, which increase your risk of heart attacks and pulmonary heart diseases. Olive oil contains polyphenols which help in building stronger cell walls. It also increases the elasticity of arterial walls, protecting you against various heart conditions.