They found that people woken while their closed eyes made jerking movements recalled much more colorful and elaborate dreams than people woken during other stages of sleep.
So if you put all that together, if you're stressed out and sleeping fitfully, you're probably having more intense sleep when you actually do get some shut-eye, which is giving you the wild dreams.
There was a gem in the brain of the dragon, Philostratus told us, and " by the exhibition of golden letters and a scarlet robe" the monster could be thrown into a magical sleep and slain.
For the study, the bees are captured and put in a low-temperature container so that they go into a sleep-like state. Photos are taken that examine the condition of the bees. The bees are then released unharmed once they warm up.