What distinguishes a random collection of people on a subway from a meaningful psychological group? Research on inter-brain coupling suggests that when people collectively focus and coordinate action, shared identity springs to life.
Dream research began before Freud, REM sleep isn’t the only stage when we dream, how researchers study dream hacking, and more on the science of dreams with Robert Stickgold.
We are experiencing too much of the wrong kind of light at the wrong part of the day, writes Ainissa Ramirez. Here’s how these lights affect our health and some ideas for what we can do about it.