Smog is composed of various air pollutants, such as particulate matter, nitrogen oxides, and ozone, which can cause inflammation and oxidative stress in the body. It can damage the blood vessels and increase the risk of stroke and heart disease.The particulate matter in smog can also enter the bloodstream. As a result colts are formed. And this clots are the leading causes of heart attacks and stokes.Furthermore, smog can aggravate pre-existing cardiovascular conditions like high blood pressure and atherosclerosis, making people more vulnerable to these diseases.