Smoking raises blood pressure, weakens blood vessel walls and increases blood clots. Both, raise to your risk of stroke, you're at high risk worsening heart disease if you already had a heart attack ora stent, placed in a blood vessel. When you inhale smoke, you're taking in substances that can damage your lungs over time, which heads to variety of problems along side with infection. It damages the entire cardiovascular system and Nicotine causes blood vessels to tighten, which restrict the flow of blood. Now, what are the health effect caused by smoking that some of us didn't know about (1) going blind, Erectile dysfunction, Ectopic pregnancy and lung cancer. The good news is that quitting smoking can reverse many effect. I think we should deliberate on this