Why Does Coffee Make You...'Go'? (Video) (IMAGE) American Chemical Society Caption It's Monday, and most of us need to reach for a cup of joe to get through the day. But with that dose of pep also comes the chance that you'll have to make an extended trip to the bathroom. In this Reactions video we explain why coffee makes you 'go'. Credit The American Chemical Society Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.