The National Institutes of Health AARP study of hundreds of thousands of Americans followed for years found that frequent consumption of sweetened beverages, especially diet drinks, may increase depression risk among older adults. Whether soda, fruit-flavored drinks, or iced......

The food industry, like the tobacco companies and other drug lords, has been able to come up with products that tap into the same dopamine reward system that keeps people smoking cigarettes, using marijuana, and eating candy bars (See......

People have chewed coca leaves for at least 8,000 years as a mild stimulant without any evidence of addiction, but when certain components are isolated and concentrated into cocaine, we've got a problem. The same may be true of......

                Every year in the United States, doctors write 20 million prescriptions for stimulants like Ritalin for kids with attention deficit hyperactivity disorder. Every year the number of prescriptions rises, more so than......

                Why does frequent consumption of vegetables appear to cut one’s odds of depression by more than half? And "frequent" was defined as eating vegetables not 3 or more times a day, but......

Caffeine consumption appears to help prevent Parkinson's, but what if you already have the condition? A recent study found that giving folks the equivalent of about two cups of coffee a day worth of caffeine significantly improved symptoms of......