Have you ever sprouted wings or swum with unicorn dolphins? Lucid dreamers can conjure these and other fantastical scenarios. Is this ancient art a real brain phenomenon? Let's look at what neuroscience has to say.
Have you ever flown through the clouds or swum with unicorn dolphins? Done somersaults in zero gravity? I have! Maybe not in real life, but I’ve been lucky enough to have some amazing dreams that felt so real I could have been in the movie Inception.
How cool would it be if you could create these dreams yourself? Or at least realize you’re dreaming in the middle of one so you can do whatever you please? Well, some people can. They practice lucid dreaming, where the dreamer becomes aware that they’re dreaming and may even gain some control over the dream content.
Lucid dreaming is where the dreamer becomes aware that they’re dreaming and may even gain some control over the dream content.
Lucid dreaming has been part of spiritual practice around the world for centuries. Tibetan monks have called it “dream yoga,” where dreamers train themselves to recognize they’re in a dream and learn to control dream content. Islamic scriptures have described lucid dreaming as a special mental state for reaching the mystical. A 4th-century Christian theologian believed lucid dreaming to be a preview of the afterlife.
These days, scientists and spiritualists alike practice this ancient art. One of the pioneers of modern research on lucid dreaming is Stephen La Berge, a scientist who kept a detailed dream diary for three years and, during that time, developed a lucid dreaming technique. He published his experiences as a case study in 1980, at which point he was reporting multiple lucid dreams per night.
How did he do it? Is it even a real thing? If so, is it a good idea to practice lucid dreaming? In this two-part series, we’ll take a trip through the neuroscience of lucid dreaming, learn how to decide if it’s a good idea for you, and explore practical how-to tips for cultivating your own lucid dreams. In part one, we start with the question:
Is lucid dreaming even a real thing?
Is lucid dreaming a real brain phenomenon?
Neuroscientists have been honing in on a method to prove that lucid dreaming is a real brain state that you can measure. Just this year, an international team of researchers published a set of bombshell studies in the journal Current Biology with the most compelling demonstrations yet—real-time two-way communication between a lucid dreamer and the outside world.
An international team of researchers published a set of bombshell studies with the most compelling demonstrations yet—real-time two-way communication between a lucid dreamer and the outside world.
In these studies, lucid dreamers received signals and questions from researchers while they were in a lucid dream, including flashing lights in Morse code, or spoken words played on a speaker. When they perceived the signals, they answered the yes/no questions by moving their eyes or twitching their face in a certain way. Using these two-way signals, lucid dreamers correctly answered questions such as “Do you speak Spanish?” and “What is eight minus six?” One participant described answering these questions while at a birthday party or fighting goblins.
This not only shows that lucid dreamers really can be aware that they’re dreaming, but that they can perceive the outside world, think, multi-task within a dream, and even communicate to the outside world using their sleeping body. How amazing!
Can anyone do it?
Now that you’re as excited about lucid dreaming as I am, perhaps you’re wondering if you can do it, too. There’s good news: Even without meaning to, about half of the population experiences at least one lucid dream at some point. People are more likely to spontaneously experience a lucid dream if they’re generally good at recalling their dreams, or if they have sleep disorders such as narcolepsy or psychiatric disorders like psychosis. Of course, this doesn’t mean that if you lucid dream you have a brain disorder—it simply appears easier for the brain to allow lucid dreaming to happen when those disorders are present.
If you’re wondering if you already lucid dream, you can ask yourself some questions from the Lucidity and Consciousness in Dreams Scale, including items like:
- While dreaming, I was aware of the fact that what I was experiencing wasn’t real
- While dreaming, I was able to change or move objects that would be impossible in waking
- While dreaming, I often asked myself if I was dreaming
- While dreaming, I was able to remember certain plans for the future
Of course, lucid dreaming is not black-or-white, have-it-or-not. Just like regular dreams, there might be different levels of intensity, awareness that you’re dreaming, and control you have in changing things.
And let’s be clear: It seems that even very lucid dreams cannot be completely controlled. It’s not quite like in the Inception movie, where Elliot Page could walk around and create a whole gravity-bending city at a wave of his hand. Especially when it comes to creating details, the dreamscape may not totally respond to your wishes.
Is lucid dreaming good for us?
Lucid dreaming may be the ultimate virtual reality game, giving us the freedom to invent fantasy experiences beyond, or precisely akin to, our wildest dreams. Besides being fun, it might have some practical benefits, too.
Besides being fun, lucid dreaming might have some practical benefits, too.
For example, practicing a motor skill in a lucid dream can improve your performance in real life, similar to how much it would improve with waking practice, all without interfering with sleep quality. There is even some evidence that learning to lucid dream can help reduce the frequency or intensity of nightmares for people with PTSD.
Lucid dreaming should not be used to replace treatment for PTSD or other psychological disorders. The research on lucid dreaming shows that while it may reduce the frequency and level of distress associated with trauma nightmares, it does not reduce PTSD symptoms or trauma-related sleep disturbance.
Who should be cautious about trying to lucid dream?
But some neuroscientists also advocate caution. For example, some are concerned that frequent lucid dreaming practice could be harmful to normal sleep by interrupting regular sleep cycles. They argue that lucid dreaming brain states are neither wake nor sleep, so we’re not getting the benefits of REM sleep that we need when we lucid dream. Others worry that constantly practicing lucid dreaming blurs the lines between reality and dream, grounded and dissociating, which might increase the risk of psychosis.
Some neuroscientists are concerned that frequent lucid dreaming practice could be harmful to normal sleep by interrupting regular sleep cycles.
It is reassuring that a few studies have shown that, at least for a night or two in the sleep lab, practicing lucid dreaming did not negatively impact sleep quality, and that lucid or not, dreaming often is not associated with poor sleep in generally healthy adults. But I believe it’s a good idea to practice lucid dreaming in moderation so as not to make a habit of replacing the type of sleep your body would have naturally produced.
Because we don’t yet fully understand the relationship between psychiatric disorders and lucid dreaming, we should be cautious here, too. Anyone with a family or personal history of psychosis (i.e., having hallucinations or bizarre beliefs), dissociation (i.e., feeling detached from reality or from your own body), or other psychiatric/neurological symptoms should consult with a psychiatrist before trying to practice lucid dreaming. And if any bizarre experiences start to happen during waking, such as feeling like the lines between reality and dreaming are getting blurry, you should stop trying to lucid dream and talk with a doctor.
How do I get started?
If you’re like me, you’re feeling eager to experience lucid dreaming! In part two of this dreaming series, I’ll walk you through the methods scientists and lucid dreamers have used to cultivate this fascinating experience. I’ll be trying these methods myself in the meantime—stay tuned for next week’s episode to hear how I did. Wish me luck!