From snoring to sleep walking, many of us do rather unusual things while we re asleep.
Now, a new study has revealed that some lucid dreamers can answer questions and even do maths while they re snoozing.
Lucid dreams are when people experience a state of heightened awareness during sleep that allows them to recognise the dream and control what happens within it.
Researchers in the US asked lucid dreamers maths problems, such as what s eight minus six , and yes-no questions, like do you speak Spanish?
In the experiments, dreamers answered correctly in real time with eye movements or facial muscle signals, demonstrating what s called interactive dreaming .
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