Lucid dreaming occurs when you recognize you are dreaming while you are still in a dream. Learn if lucid dreams are safe, and how to induce them.
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Is Lucid Dreaming Dangerous? Updated August 29, 2022 Written by Jay Summer, Staff Writer Jay Summer Staff Writer Jay Summer is a health content writer and editor. She holds a B.S. in psychology and master's degrees in writing and public policy. Read Full Bio Want to read more about all our experts in the field? Learn About The Editorial Team Medically Reviewed by Dr. Anis Rehman, Endocrinologist Dr. Anis Rehman Endocrinologist Dr. Rehman, M.D., is a board-certified physician in Internal Medicine as well as Endocrinology, Diabetes, and Metabolism. Read Full Bio Want to read more about all our experts in the field? Learn About The Editorial Team Fact Checked Our team of writers, editors, and medical experts rigorously evaluates each article to ensure the information is accurate and exclusively cites reputable sources. Learn More Sleep Foundation Fact-Checking: Our Process At Sleep Foundation, we personally test every product featured in our reviews and guides. 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Listen to this article 0:00 / 10:03 1X BeyondWords Each night, people dream for a total of about two hours Trusted Source National Institute of Neurological Disorders and Stroke (NINDS) NINDS aims to seek fundamental knowledge about the brain and nervous system and to use that knowledge to reduce the burden of neurological disease. ninds.nih.gov as they sleep. Dreams might help process emotions Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov and form memories of waking experiences. Researchers propose that dream interpretation may also provide the dreamer with personal insight Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov into their life and unconscious mind Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov . During a lucid dream Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov , the sleeper gains awareness that they are dreaming and can sometimes control the trajectory of the dream. People are interested in lucid dreaming in hopes that it may stimulate psychological growth Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov , allow them to try impossible acts like flying, or even treat nightmares Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov . However, some experts caution against using methods to intentionally induce lucid dreaming until more research on the safety of lucid dreaming has been conducted. Risks of Lucid Dreaming Although more research is needed, some experts suspect lucid dreaming could come with negative consequences. The most concerning potential dangers of lucid dreaming are disrupted sleep and mental health issues. Disrupted Sleep Although lucid dreaming generally occurs during rapid eye movement (REM) sleep, lucid and non-lucid REM sleep periods differ from one another. Preliminary studies have revealed that lucid dreams incorporate unusual patterns of brain activity with elements of both sleep and wakefulness. In this regard, lucid dreaming may be conceived as a hybrid form of consciousness. Researchers caution that this may interfere with processes that normally occur during REM sleep, notably memory consolidation and emotional regulation. More research is needed to determine if being more “awake” during your dreams makes sleep less restful. Some studies have found that more lucid dreaming is associated with a lower quality of sleep Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov , but a closer look revealed that the connection was not significant if nightmares were accounted for. It could be that people who are more likely to have lucid dreams are also more likely to have sleep-disrupting nightmares, not that lucid dreaming disrupts sleep directly. One study found that people actually tend to feel more refreshed after awakening from a lucid dream. The only caveat was that after waking up to stimulate lucid dreaming, participants felt less refreshed in the morning if they were not able to make up the lost sleep. Sometimes people try to induce lucid dreaming in ways that interrupt the natural sleep cycle, causing fragmented sleep Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov . These lucid dreaming induction methods Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov often involve intentionally disrupting sleep: Mnemonic Induction of Lucid Dreams (MILD): With this technique, a sleeper repeatedly tells themselves that next time they are dreaming, they will be aware they are dreaming. Then, they try to fall back asleep with that intention on their mind. Often, they engage in this self-talk after intentionally waking up after about five hours and staying awake for 30 to 120 minutes before returning to sleep. Wake Back to Bed (WBTB): This lucid dreaming technique involves purposely waking up in the early morning Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov , then taking a nap. Lucid dreaming becomes more likely during the nap. Senses Initiated Lucid Dream (SSILD): Like the MILD technique, SSILD has a person intentionally wake up after about five hours of sleep. Then, they move their attention between different stimuli, such as sights, sounds, and physical sensations, before falling back asleep. External Stimulation: With the help of another person, external stimuli are administered to the sleeper to trigger lucidity as they sleep. Along the same lines, people may take substances before going to bed with the aim of directly disrupting the systems that regulate sleep. Since disrupted and insufficient sleep are associated with a greater risk of physical and mental health issues, experts caution that engaging in lucid dreaming induction techniques on a frequent basis may come with inherent risks. More research, particularly long-term studies and studies looking at daytime tiredness, are needed to determine if lucid dreaming produces the same negative effects that are commonly seen alongside disrupted or insufficient sleep. Mental Health Concerns Research studies have found that lucid dreaming may impact the mental health Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov of certain people. Whether that impact is positive or negative may depend on the nature of their lucid dreaming experiences. For example, studies have found that lucid dreaming may help reduce nightmares in people with post-traumatic stress disorder (PTSD). Although not all studies on the topic have replicated this finding, others have found lucid dreaming can reduce anxiety and depression Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov in people who have both PTSD and nightmares. However, lucid dreaming might pose a risk to people who experience psychosis Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov . Lucid dreaming involves metacognition Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov , a type of self-awareness that requires thinking of yourself from an outside perspective Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov . Some researchers point out that this third-person view of one’s self during a lucid dream is similar to a dissociative mental state. Dissociation is a feeling of being detached from your body and trouble discerning what is real that is experienced by some people with mental illness. This state of mind is present in early psychosis. More research is needed, but preliminary studies suggest that lucid dreaming is linked to psychosis both positively and negatively. The researchers of one study posit that people who have not experienced psychosis before might benefit from lucid dreaming by becoming stronger psychologically. Conversely, engaging in lucid dreaming might harm those who already experience psychosis, by making their internal reality — in this case, the dream state — seem more like reality. Researchers of one study found that intentionally attempting to induce lucid dreaming is associated with depression, dissociation, obsessive compulsive symptoms, and symptoms that are characteristic of schizophrenia. It is not clear whether people with related mental health conditions are more likely to attempt lucid dreaming, or whether deliberately inducing lucid dreaming contributes to mental health symptoms, perhaps through disrupted sleep. Among people who experience lucid dreaming, those who rate the experience as positive and more intense appear less likely to have adverse mental health symptoms. 14 Nights to Better SleepSign up to receive daily email sleep tips and challenges, as well as our comprehensive Better Sleep Guidebook.SIGN ME UP!Your privacy is important to us. Tips for Safe Lucid Dreams If you are interested in trying to lucid dream, you can use the existing research as your guide to minimize risks. If you feel any confusion or uncertainty about whether or not lucid dreaming is safe for you, ask your doctor or mental health professional for advice. Consider Why You Want to Lucid Dream Being aware of why you want to lucid dream can help you evaluate if lucid dreaming is working for you, or if you should let the practice go. People may feel interested in lucid dreaming for a variety of reasons, such as wanting to experience altered consciousness without taking drugs, or overcoming fears and becoming stronger psychologically. If you find that lucid dreams are not helping you achieve the goals you set out to achieve, then the benefits may not be worth the potential risks. Avoid Lucid Dreaming If You Have Certain Health Conditions More research is needed to fully understand how lucid dreaming relates to mental health. Until research can better explain the effects of lucid dreaming, people with certain conditions might want to avoid intentionally trying to lucid dream. For example, if you have experienced dissociation or psychosis, such as feelings that you are disconnected from yourself or trouble distinguishing fantasy from reality, lucid dreaming may heighten these symptoms. Along the same lines, since lucid dreaming induction techniques can lead to fragmented sleep, these may not be appropriate for people who already experience disrupted sleep due to a sleep disorder. People who live with sleep problems or mental health conditions should speak with a mental health professional or sleep specialist before trying to induce lucid dreaming. Make Up for Lost Sleep If you decide to try and induce lucid dreaming through methods that disrupt your sleep, be sure you still obtain an adequate amount of sleep overall. For adults, the recommended sleep time is at least seven hours per night Trusted Source Centers for Disease Control and Prevention (CDC) As the nation’s health protection agency, CDC saves lives and protects people from health threats. cdc.gov . You may find you need even more sleep than this if your sleep has been disrupted due to lucid dreams. Use Non-Disruptive Lucid Dream Induction Techniques Not all lucid dreaming induction techniques involve intentionally disrupting sleep. If you want to try lucid dreaming, consider beginning with techniques that are less likely to wake you up during the night. For example: Lucid Dreaming Induction Devices: These portable devices Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. pubmed.ncbi.nlm.nih.gov strap around your head, like an eye mask. They monitor your sleep using sensors, then attempt to induce lucidity when they estimate you are in a REM sleep stage. Different devices operate differently, with some using lights and others using sound as a signal to help trigger lucidity within the dream. Reality Testing (RT): To conduct a reality test, you do something to determine if you are awake or dreaming, such as repeatedly checking a clock to see if it reads the same every time you look. In theory, if reality testing is performed often enough while awake, it becomes a habit that spills over into a dream. Then, when a person reality tests during a dream, the unrealistic test results help them recognize they are dreaming and become lucid. Mnemonic Induction of Lucid Dreams (MILD): The underlying aim of MILD is to trigger yourself to remember that you are dreaming once you fall asleep. Although this technique often involves sleep disruption, another possibility is to repeat your chosen phrase any time you are falling asleep naturally. Keeping a Dream Diary: Although not all research has found this method to be effective, some people report that keeping a dream diary helps increase the number of lucid dreams they have. To keep a dream diary, write down as much as you can remember from any dream you have as soon as you wake up, even if you wake up during the night. Video Game Playing: Although video games Trusted Source Oxford Academic Journals (OUP) OUP publishes the … truncated (9,642 more characters in archive)