Towards the end of a typical six- to eight-hour night of sleep, the brain gets its chance at rejuvenation, during Rapid Eye Movement (REM) sleep. This is the stage that’s crucial for learners because the brain solidifies all that was taken in the day before and clears out old, unnecessary memories to make room for new information.
Lisa Aliferis is the founding editor of KQED's State of Health blog. Since 2011, she's been writing and editing stories for the site. Before taking up blogging, she toiled for many years (more than we can count) producing health stories for television, including Dateline NBC and San Francisco's CBS affiliate, KPIX-TV. She also wrote up a handy guide to the Affordable Care Act, especially for Californians. Her work has been honored for many awards. Most recently she was a finalist for "Best Topical Reporting" from the Online News Association. You can follow her on Twitter: @laliferis