Coffee or tea? Your caffeine of choice may have already been decided by your DNA By Mark Thomas / February 9, 2019 Begin Slideshow Pro Gym UP NEXT The deadliest animals in the world, ranked... Categories: BIOLOGY Tags: coffee, dna, genetics, tea Mark Thomas Mark is the purveyor of Science 101. His background encompasses design, art history, and physics. He enjoys unlocking the secrets of life’s darkest mysteries using the power of science. Fresh India Slammed Into The Himalayan Mountains To Create Mt. Everest No one knows what to do with Pablo Escobar’s controversial hippos Why You Shouldn’t Feed Bread To Ducks Pollinators In Crisis: What A Bee Decline Could Mean For Our Planet Does Vaping Help Users Quit Or Reinforce Tobacco Use?