ATLANTA â€” "Fat cancers" usually associated with wealthy countries are becoming more common in the developing world, too, according to new reports. Obese people are thought to be at higher risk for many so-called "fat cancers," including breast and colon cancer. A separate report out Friday shows obesity rates worldwide have doubled in the last three decades, especially in the West but also nearly everywhere else. "Sadly, changing ways of life, such as reduced physical activity, are making people unhealthier and in turn prone to such diseases as cancer," Dr. Eduardo Cazap, president of the Union for International Cancer Control, said in a statement released by the World Health Organization. For decades, health officials have worried about the impact of cigarette smoking â€“ another nasty habit common in industrialized countries â€“ on lung cancer deaths in developing countries. But now, they say, it's becoming increasingly urgent that those nations also do something about overeating and poor health habits. The WHO on Friday recommended 2 1/2 hours a week of moderate physical activity for reducing the risk of breast and colon cancers. Some scientists think increased levels of insulin and certain sex hormones in the obese may somehow trigger cancer growth. I guess this falls under culture, eating one at lest lol If not- move it to wherever appropriate). anyways- interesting article. http://www.huffingtonpost.com/2011/02/04/fat-cancers-hit-developin_n_818585.html Cancer is seen mostly in older people, and tends to be more common in societies without as much of the diseases, violence and other problems that kill people early in life. Infectious diseases have dominated in less developed countries, and that's true even in the world of cancer. Cervical cancer, caused by a sexually transmitted virus, has been a leading cause of cancer deaths in women in many countries. But in recent years, breast cancer has surpassed cervical cancer as a cause of death in some developing countries. And the number of new breast cancer cases has surpassed cervical cancer in places like Mumbai, India and Setif, Algeria, according to researchers at the American Cancer Society.