We know that obesity is a factor in a number of health issues, including diabetes. But until recently, there was a misconception that being overweight may offer at least one benefit: protecting your bones. Researchers had speculated that because obesity resulted in an increase in body mass, bone mass would increase as well, decreasing risk of osteoporosis and associated fractures in people who are overweight.

Life these days is reminding me more and more about how it must be living in the jungle. You get up in the morning and go about your day never quite knowing what is going to bite you, chase you, or maybe even kill you. The recent outbreak of E-coli infections in Chipotle restaurants makes the case. You get hungry. It's about lunch time.

Approximately one in five members of the working population is a shift worker. If you're one of those, and you're male, I have good news for you. As you may know, researchers have linked shift work to various forms of cancer in the past, including breast cancer in women. But new research suggests there's one type of cancer you don't have to worry about your job increasing your risk for.