Take a walk - for your sake and the Earth’s Fighting obesity and global warming may be as simple as leaving your car in park. America's obesity epidemic and global warming might not seem to have much in common. [News Source]

Zinc plays a key role in better aging. It helps maintain the health of older people, can work as an antioxidant and lowers mortality. [News Source]

With faux sugars, real suspicion. Americans love sweeteners but can't shake their distrust of the stuff. The science can confuse. [News Source]

New findings on Vitamin D (The Manila Times) Two scientists at McGill University in Canada—Luz E. Tavera-Mendoza and John H. White—reported in the November 2007 issue of Scientific American that they and their team have found new and surprising functions of Vitamin D. [News Source]