n average, we spend about a third of our lives – or around 26 years – sleeping, six years of which are spent drifting off to dreamland. During an optimal seven-hour sleep at night, the body experiences sleep cycles with four stages, which together take between 90 and 110 minutes to complete. The first two stages, called NREM 1 and NREM 2 (non-rapid eye movement) involve light sleep that lasts up to around
WHY WE DREAM
Aug 31, 2023
2 minutes
You’re reading a preview, subscribe to read more.
Start your free 30 days