Here is an article reinforcing the effects of overeating and limited exercise. No surprise. So obvious. On the other hand, we don’t even know the cause of many cancers. Any one have some ideas?

What’s killing us? For decades, global health leaders have focused on diseases that can spread – AIDS, tuberculosis, new flu bugs. They pushed for vaccines, better treatments and other ways to control germs that were only a plane ride away from seeding outbreaks anywhere in the world.

Now they are turning to a new set of culprits causing what United Nations Secretary-General Ban Ki-moon calls “a public health emergency in slow motion.” This time, germs aren’t the target: We are, along with our bad habits like smoking, overeating and too little exercise.

Next week, the U.N. General Assembly will hold its first summit on chronic diseases – cancer, diabetes and heart and lung disease. Those account for nearly two-thirds of deaths worldwide, or about 36 million. In the United States, they kill nearly 9 out of 10 people. They have common risk factors, such as smoking and sedentary lifestyles, and many are preventable…

Europe and North America. These regions are paying the price of too much eating, too little exercise and smoking: heart disease and diabetes dominate. Cancers that are more prevalent with age – breast and prostate – reflect long life spans in these regions where treatment is widely available. In Eastern Europe and the former Soviet Union, lung cancer is the dominant cancer in men. Europe has the highest smoking prevalence in the world: 29 percent.

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