In his book Dreamland: Adventures in the Strange Science of Sleep, author David K. Randall calls sleep “one of the dirty little secrets of science.” That’s because despite spending almost a third of our lives sleeping, we don’t really know much about the process of sleep.
In fact, Randall, a senior reporter at Reuters, notes that sleep is one of the youngest fields in science. Until the 1950s, researchers believed that our brains remained quiet during slumber.
But the discovery of the stages of sleep shattered this perspective. For instance, our brains are just as active in REM sleep — aptly named rapid eye movement because our eyes shift rapidly against our lids — as they are when we’re awake.
In Dreamland, Randall shares a slew of these fascinating, surprising and eye-opening facts, anecdotes and research studies. These are a few curious tidbits from his book.