• Question: How long does a dream last for? :) x

    Asked by graceyx to Fiona on 20 Jun 2010 in Categories: .
    • Photo: Fiona Randall

      Fiona Randall answered on 20 Jun 2010:

      To study sleep and dreams, patients have to have electrodes on the surface of their brains while they are sleeping. I don’t know exactly how long a dream lasts but while you sleep your brain goes through various stages of sleep. In the bit called REM sleep (rapid eye movement sleep) is where you dream and this scientists think this can last for around 20% of the time you are asleep.

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