When dreams go too far

A person who is aware that he or she is dreaming and is able to manipulate the plot and outcome of the dream, like a video game. It is not uncommon, and in children it can happen frequently, even as an expression of creativity, said Gary Schwartz, professor of psychology and neurology at the University of Arizona.

Research suggests that various techniques can increase the frequency of lucid dreams. For instance, you can remind yourself before you go to sleep that you want to be aware that you're dreaming when dreams happen.
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