Effects of Smoking : How Does Smoking Cause a Stroke?

Effects of Smoking : How Does Smoking Cause a Stroke?

Smoking can cause a stroke by thickening or narrowing the blood vessels that lead to the brain, mostly by increasing the likelihood of a blood clot. Find out how risk factors for strokes can be reversed if someone stops smoking with help from a pulmonary disease research expert in this free video on the effects of smoking.


  1. E Double on November 5, 2019 at 9:40 am

    Bullshit. Cigarette smoking *may* help but it’s not the sole cause of a stroke.

  2. Skuta Daniel Viorel on November 5, 2019 at 9:46 am

    Steven Criscione you can develop cancer in your mouth aswell. Anyway sooner or later you will start inhaling. And because nicotine is a drug, you will smoke more and more. Just be kind with yourself and quit for good. The only resonable way to quit is with knowledge of the facts. Highly recommend Allen Carr book "Easy Way".

  3. Robert Rivera on November 5, 2019 at 9:51 am

    I know you must get this alot, but does marijuana cause strokes?
    Thank you Dr. David!

  4. Steven Criscione on November 5, 2019 at 10:11 am

    Thank you for this, I see too many people smoking cigarettes and I never touched cigarettes, but I do smoke cigars and as you know as a doctor, cigar smokers do not inhale, they simply puff and taste the smoke that enters the mouth, but my question was never answered and I always wondered, does cigar smoke or smoking cigars rather, impact the arteries the same way that cigarette smoking does? I know that it decreases oxygen levels in the bloodstream as it contains nicotine but I always was under the belief that cigarette smoking is far worse because you are actually drawing the smoke into your lungs and after a while, the lungs start to crack and bleed and possibly create clots… I have always heard about cigarette smokers having strokes but I know cigar smokers that are in their 80s and 90s and I even know a guy that is approaching 100 years old and he said that he never touched cigarettes… What are your thoughts?

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