Smoking Is often associated with lung problems, but its impact on the heart can be equally devastating. Tobacco smoke contains toxic substances that can affect {blood vessels|arteries|, blood pressure, oxygen levels, and the way blood clots. The alarming part is that these changes may begin quietly, even when you feel https://telegra.ph/How-Does-Smoking-Damage-Your-Heart-Before-You-Notice-Any-Symptoms-09-14