Social Jet Lag (IMAGE) Cell Press Caption This graph and map respectively show the differences in Twitter activity on weekdays vs. weekends and local magnitudes of social jet lag. Credit Olivia Walch Usage Restrictions Credit required 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.