Can't recall your dream from last night? There's a reason for that.
And that recurring dream where you can fly? We can explain that, too.
By the way, robots might be able to dream soon.
Here's everything you need to know about dreams, and then some.More
You may not remember a dream once you wake up, but you definitely had one. In fact, you probably had several, especially if you got your full 8 hours of sleep. "A lot of people don't realize how much we all dream and that we all dream every night, multiple times a night," says Anne Cutler, a New York-based psychoanalyst. "Most dreams occur during the rapid eye movement, or REM, stage of sleep." Psychoanalyst Sue Kolod, PhD, who teaches at the William Alanson White Institute in New York City, adds that we dream for at least every 45 minutes throughout slumber.
Whether it's from your pet licking your face or just a natural jolt, you've likely been startled awake in the middle of a dream before. "Dreams that are most remembered are the ones you wake up from," Cutler says. But, there's a downside to this. "This is also why people remember nightmares more easily," Cutler adds. "If a dream creates enough anxiety, you're going to wake up as a way of escaping."