What are the effects of smoking on blood pressure?

Raises it: Smoking among other detrimental effects, has been shown to increase blood pressure.

It raises it: Many cases of secondary hypertension are related to smoking, especially heavy smoking and esp in women. Smoking constructs blood vessels, which elevates the blood pressure. Smoking and high blood pressure are two major risk factors for developing arteriosclerosis, which is what results in most heart attacks and strokes.