Israeli researchers are one step closer to discovering a treatment for Parkinson's disease, after finding a genetic mechanism connected to cigarette smoking that keeps the degenerative disease from progressing.

Fed up with diets and exercise? According to a new study, the best way to stay slim is to sleep. Researchers found that a protein called SIRT1 is the missing link between metabolism and the circadian clock, which regulates our sleep-wake cycle, and could be a factor in metabolic disorders such as obesity and type-2 diabetes.

Green tea can help beat bad breath, according to a recent scientific study. The study found that antioxidants in green tea, called polyphenols, destroy a number of compounds in the mouth that can lead to bad breath, tooth decay and even mouth cancer.