I think a lot of other factors play into the answer for this question. But one fact is, smoking
is one of the modifiable risk factors for heart attack
. (Weight/Diet and exercise being another.)
present in smoke causes:
- Decreased oxygen to the heart.
- Increased blood pressure and heart rate
- Increase in blood clotting.
- Damage to cells that line coronary arteries and
other blood vessels.
Someone with a known history of coronary disease with a previous heart attack has to quit smoking, period. Otherwise, I'd say it's just a gamble.