Smoking cigarettes constricts blood vessels, which forces the heart to work harder to pump blood through the body and raises blood pressure. If you smoke, make quitting a priority to reduce high blood pressure.
Drinking in moderation is generally considered to be safe. The American Heart Association recommends one to two drinks for men and one for women. Drinking in excess however can lead to high blood pressure as well as other serious health problems. If you do drink, try to cut back to a glass of wine a day (red wine does contain a high amount of antioxidants, which can be good for heart health). If you do not drink, don't start just for the antioxidants in red wine — you can also drink grape juice, blueberry juice, green tea, black tea or even hot cocoa for antioxidants, as well as consume fruits, vegetables, seeds, legumes and grains.
If you are a coffee drinker and you have high blood pressure, consider cutting down your coffee consumption to no more then one cup a day or switching to green tea. For some people regular caffeine consumption does lead to higher blood pressure.