The Economic Times

Psychology says people who need an energy drink every day may be caught in a powerful brain-behavior loop

Drinking an energy drink every day does not necessarily mean someone is addicted to caffeine. People differ considerably in how sensitive they are to caffeine, how quickly their bodies metabolize it, how much they consume and the circumstances in which they use it. Research reviewing the genetics of caffeine use also highlights how difficult it can be to define and measure caffeine dependence consistently across different populations. Still, the frequency and pattern of consumption can be important to consider.