On sleep paralysis, morning contemplation and late-night creativity.
When does "sleeping on it" actually help?
Exhausted but happy? Well, short-term sleep deprivation can be a temporary upper.
Aphantasiacs can't visualize images in their mind's eyes. But that doesn't stop them from dreaming.
Dream researcher Erin J. Wamsley discusses how she began her career, her theory about dreaming and why you should never, ever tell her about what happened in your head last night.
For 75 years, scientists have looked for a connection between gum-chewing and cognition. Does one exist?
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