I love it when a new report comes out that pinpoints yet another reason we should all exercise. As if being mortified to put on a bikini this Summer wasn't enough, now CNN is reporting on new research that says exercise may also help prevent addiction to drugs or alcohol. Here's why:

Brown University took smokers to the gym three times a week and found adding the exercise to a smoking-cessation program doubled women's chances of successfully kicking the habit. The quitters who worked out got an extra benefit: They gained half as much weight as women who managed to quit without exercising, says lead researcher Dr. Bess Marcus.

What's more? In people, exercise acts as an antidepressant and can relieve stress, which has been linked to an increased risk of alcoholism, smoking or drug abuse. All that and it's good for your health! So hit the gym today and you'll be less likely to hit the bottle tomorrow.

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