Slate's Medical Examiner: Low-Cal for a Long Life?
A recent study suggests a link between extreme low-calorie diets and longer life. But <em>Slate</em> medical columnist Dr. Sydney Spiesel says he has doubts about the restrictive diets and their effect on metabolism and health. In the long run, would you want to live longer if you knew you would feel hungry all the time?
More and more Americans are consuming artificial sweeteners as an alternative to sugar, but whether this translates into better health has been heavily debated. NPR&#8217;s Allison Aubrey explains a new study in the journal &#8220;Trends in Endocrinology and Metabolism&#8221; that looks at the brain science behind drinking diet soda. 
NPR: Do Diet Drinks Mess Up Metabolisms?

Guest:

Allison Aubrey, food and health correspondent for NPR. She tweets @AubreyNPRFood.