Listening to other people's dreams can help to improve your empathy levels.
At times of anxiety and trauma an increase in unusual or vivid dreams and nightmares is not surprising.
During times of stress and anxiety we either dream more or remember our dreams more often, as a way of coping with challenging circumstances and new information.
When we are asleep our brain does not switch off. It keeps working, but not as hard.
The most interesting part of our body that changes during sleep is our brain.
Niamh, age 7, wants to know why we have scary dreams. But after 200 years of study, dreams are still very much a mystery.
The theme of this year's NAIDOC week is "Our Languages Matter". Aboriginal languages under threat across Australia. Read a Warlpiri introduction to Dreamtime and The Dreaming.
Sleep is often overlooked as a treatment for brain injury, but new research could be about to change that.