If you're a former smoker, you've already done wonders for your health by quitting. But insofar as lung cancer is concerned, the damage caused in the past may still come back to haunt some people. The good news is that there may be ways to help stave off this post-cessation lung cancer, and all it involves is eating some veggies.

A study conducted at the University of Texas revealed that ex-smokers, who consumed around 2 cups of leafy greens and 1 cup of chopped vegetables per week, were half as likely to get lung cancer than those who ate less servings of these veggies.

To further target-harden your body against lung cancer, you should also begin a regular exercise program of some kind. Based on a 2006 study conducted by the University of Pennsylvania and the University of Minnesota, regular activity can reduce the risk of lung cancer for former smokers by 23 percent.