Sleep and Smartphones: The Chemistry that Keeps You Awake (image) American Chemical Society Share Print E-Mail Caption The smartphones and tablets millions of us use every day may also keep us awake. In the American Chemical Society's (ACS') latest Reactions video, find out how the light emitted from those devices triggers a chemical reaction that tells our brains to rise-and-shine, rather than snooze. The video is available at http://youtu.be/mnDfPpUC_jg. Credit The American Chemical Society Usage Restrictions None Share Print E-Mail 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.