The brain heals during sleep. (IMAGE) University of California - Los Angeles Caption A UCLA-led team of scientists reports on why sleep is vital to our health and how the brain heals during sleep. Credit Daisy Daisy/Shutterstock.com 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.