RadioMD News... I'm John Byrd. New technology could manipulate the body's fat production and lower the risk for a wide range of health conditions, finds a new study. Manipulating the type of fat cells in the body could reduce the risk of cardiovascular disease, diabetes, high blood pressure, gall bladder disease and other conditions, possibly including obesity. Low levels of vitamin D may be a good indicator of more aggressive forms of prostate cancer, say researchers. All men should be replenishing their vitamin D to normal levels for preventative health care. And... is grey hair genetic? Scientists say they've pinpointed the first gene linked with gray hair, proving that genes play a role in graying hair. The gene was known to play a role in hair color, but this is the first time it has been connected with the graying of hair. Although genes play a role, they are unlikely to be the only factors that determine whether you get gray hair or not. Having kids seems like a good bet too, right? For RadioMD News, I'm John Byrd. For health talk 24/7, log on to RadioMD.com