1. Filter Your Tap WaterYou'll reduce your exposure to known or suspected carcinogens and hormone-disrupting chemicals. A new report from the President's Cancer Panel on how to reduce exposure to carcinogens suggests that home-filtered tap water is a safer bet than bottled water, whose quality often is not higher—and in some cases is worse—than that of municipal sources, according to a study by the Environmental Working Group. (Consumer Reports' top picks for faucet-mounted filters: Culligan, Pur Vertical, and the Brita OPFF-100.) Store water in stainless steel or glass to avoid chemical contaminants such as BPA that can leach from plastic bottles.
2. Stop Topping Your TankSo say the EPA and the President's Cancer Panel: Pumping one last squirt of gas into your car after the nozzle clicks off can spill fuel and foil the pump's vapor recovery system, designed to keep toxic chemicals such as cancer-causing benzene out of the air, where they can come in contact with your skin or get into your lungs.
30 Ways to cancer-proof your life.
3. Marinate Meat Before GrillingProcessed, charred, and well-done meats can contain cancer-causing heterocyclic amines, which form when meat is seared at high temperatures, and polycyclic aromatic hydrocarbons, which get into food when it's charcoal broiled. "The recommendation to cut down on grilled meat has really solid scientific evidence behind it," says Cheryl Lyn Walker, PhD, a professor of carcinogenesis at the University of Texas M.D. Anderson Cancer Center. If you do grill, add rosemary and thyme to your favorite marinade and soak meat for at least an hour before cooking. The antioxidant-rich spices can cut HCAs by as much as 87%, according to research at Kansas State University.
4. Caffeinate Every DayJava lovers who drank 5 or more cups of caffeinated coffee a day had a 40% decreased risk of brain cancer, compared with people who drank the least in a 2010 British study. A 5-cup-a-day coffee habit reduces risks of cancers of the pharynx and mouth almost as much. Researchers credit the caffeine: Decaf had no comparable effect. But coffee was a more potent protector against these cancers than tea, which the British researchers said also offered protection against brain cancer.