Skip to main content

Stories by Chiara Cirelli1 articles archived since 1845

New Hypothesis Explains Why We Sleep

During sleep, the brain weakens the connections among nerve cells, apparently conserving energy and, paradoxically, aiding memory

August 1, 2013 — Giulio Tononi and Chiara Cirelli

Celebrate our 170th Anniversary with us!

Get 2 years of All Access for just $170