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Strategies to prevent heart disease

1. Don't smoke or use tobacco

One of the best things you can do for your heart is to stop smoking or using smokeless tobacco. Even if you're not a smoker, be sure to stay away from secondhand smoke.

Chemicals in tobacco can damage the heart and blood vessels. Cigarette smoke lowers the oxygen in the blood, which raises blood pressure and heart rate. That's because the heart has to work harder to supply enough oxygen to the body and brain.

There's good news though. The risk of heart disease starts to drop in as little as a day after quitting. After a year without cigarettes, the risk of heart disease drops to about half that of a smoker. No matter how long or how much you smoked, you'll start reaping rewards as soon as you quit.