Researchers studied white blood cell telomeres (the caps at the end of chromosomes in every cell). Shorter telomeres are associated with cardiovascular disease, diabetes, cancer, stress and a shorter lifespan. People who drank more sugary soda tended to have shorter telomeres. One 8-oz serving daily was found to be equal to 1.9 years of additional aging; a 20-oz serving was equal to 4.6 years of aging, equivalent to the impact of smoking! Non-carbonated sodas and sweetened fruit juices did not demonstrate the impact.
PositiveTip: Sugary, soda beverages contribute no nutritional or health advantages.