Smoking Is often associated with breathing trouble, but its impact on the heart can be equally devastating. Tobacco smoke contains harmful chemicals that can affect {blood vessels|arteries|, blood pressure, oxygen levels, and the way blood clots. The worrying part is that these changes may begin quietly, even when you feel https://www.tumblr.com/maheshnadgir/827740000144769024/how-does-smoking-damage-your-heart-before-you?source=share