One of the best things that you can do to boost your immune system is head to bed, says sleep scientist Matt Walker. It can even make your flu shot more effective!
Sleeping with Science, a TED original series, uncovers the facts and secrets behind our nightly slumber. (Made possible with the support of Beautyrest)
Check out more: https://go.ted.com/sleepingwithscience and subscribe to the TED channel: https://www.youtube.com/TED
