.3 Quitting Smoking and Risk for Type 2 Diabetes. Researchers studied a group of 10,892 middle-aged adults over a period of nine years. They found that smokers who quit had a higher risk of diabetes within three years of quitting than either nonsmokers or continuing smokers. Does this show that stopping smoking causes the short-term risk for Type 2 diabetes to increase? (Weight gain has been shown to be a major risk factor for developing Type 2 diabetes and is often a side effect of quitting smoking. Smokers also often quit due to health reasons.) Based on this research, should you tell a middle- aged adult who smokes that stopping smoking can cause diabetes and advise him or her to continue smoking? Carefully explain your answers to both questions.