In school it’s a little bit tougher to see that because you don’t have as many shifts and you don’t see as many people so your effect on patients are a little bit less.

A new study shows rats that ate food sweetened with saccharin ate more, gained more weight and stored more fat over time than rats that ate regular sugar.

Dr. Susan Swithers of Purdue University: "What the results suggest is that consuming artificially sweetened products by themselves may not in fact contribute to weight loss - and to the contrary, may sometimes lead to weight gain."

What's more, the researchers say the artificial sweetener caused a biological change in the rats, slowing down their metabolism. The study seems to explain why some of the heaviest consumers of artificial sweeteners are some of the heaviest Americans. [Swithers SE PhD and Davidson TL. A role for sweet taste: calorie predictive relations in energy regulation by rats. Behavioral Neuroscience. 2008; 122(1):161-173.]

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Morris, an 82-year-old man, went to the doctor to get a physical examination. A few days later, the doctor saw Morris walking down the street with a gorgeous young woman on his arm.

A couple of days later, the doctor spoke to Morris and said, "You're really doing great, aren't you?"

Morris replied, "Just doing what you said, Doc: 'Get a hot mamma and be cheerful.'"

The doctor said, "I didn't say that. I said, 'You've got a heart murmur; be careful.'"