MILES O'BRIEN, CNN ANCHOR: A 16-year study shows that excess weight may dramatically increase your chances of developing certain kinds of cancer. CNN's Christy Feig has more on the cancer/fat connection.</s>CHRISTY FEIG, CNN CORRESPONDENT (voice-over): Glenda Camara has lost almost 45 pounds in the last six months. She's doing it for her three kids.</s>GLENDA CAMARA, WEIGHT LOSS PATIENT: I need to, one, be around for them. And I know that being obese can cause a lot of health issues. And two, I need to be able to get out with them and participate in different activities with them.</s>FEIG: In shedding the pounds, she may get an additional benefit. A new study shows being overweight increases your risk of many cancers.</s>EUGENIA CALLE, AMERICAN CANCER SOCIETY: The heaviest men and women in our study were 50 percent to 60 percent more likely to die from cancer than the men and women of normal weight.</s>FEIG: That's because fat seems to raise the level of certain hormones that are linked to cancer. But with some cancers, just being heavier puts you at risk.</s>DR. GABRIEL UWAIFO, WASHINGTON HOSPITAL CENTER: While cigarettes are clearly marked this could be a dangerous for your health, people need to realize that a high fat diet over a long period of time could just be as dangerous.</s>FEIG: The U.S. government says two-thirds of American adults are overweight. And that number is expected to rise in the next five years.</s>UWAIFO: Twenty, 30 percent of people who go on a diet can actually lose weight and keep it off.</s>FEIG: The only way to guarantee success is change your lifestyle to make sure you're burning more calories than you're eating. In Washington, I'm Christy Feig. TO ORDER A VIDEO OF THIS TRANSCRIPT, PLEASE CALL 800-CNN-NEWS OR USE OUR SECURE ONLINE ORDER FORM LOCATED AT www.fdch.com Cancers>
Study: Excess Weight Increases Chances of Developing Some Cancers