Conscious sleep intrusions can shut us off and make our minds wander somewhere, or nowhere.
A new global study into COVID-related dreams and daydreams aims to shed light on how they relate to our mental health in the pandemic.
When we dream, we get so absorbed by our fantasies that the external world is shut out, even though the brain can still process sensory information.
Spontaneous thought takes up a large part of our waking consciousness, but that doesn't mean it's bad – it just depends on when you do it.
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