Every night, while you sleep, your mind gets busy. Stories unfold, places shift, people appear and disappear. Dreams have fascinated humans for as long as we’ve been sleeping, and they’re still full of mystery.

Here are six facts about dreams to wonder about.

1. Everyone dreams

Even if you rarely remember them, you almost certainly dream every night. People who say they never dream usually just don’t recall their dreams when they wake.

2. Many vivid dreams happen during REM sleep

Sleep moves through different stages during the night. The most vivid, story-like dreams are often linked with REM (rapid eye movement) sleep, when the brain is very active. We cycle through REM several times a night, with longer periods towards morning.

3. Dreams fade quickly

Most dreams slip away within minutes of waking. If you want to remember them, it helps to lie still for a moment before moving and to jot down whatever you recall straight away. Why do you forget your dreams? explores this further.

4. Some themes are very common

People all over the world report similar dream themes: being chased, falling, flying, being late, sitting an exam or losing teeth. These shared themes are fascinating, though their meaning is likely to be personal rather than fixed.

5. Dreams sometimes repeat

Many people have recurring dreams at some point in their lives. They often appear during stressful periods. The science of recurring dreams looks at this more closely.

6. There are many theories about why we dream

Some researchers think dreams help us process emotions and memories. Others see them as the brain sorting through the day, rehearsing challenges or simply making stories from random activity. Many spiritual traditions see dreams as meaningful messages. No single theory has settled the question.

How to use this week

If you’d like to get to know your dreams a little better:

  • When you wake, lie still for thirty seconds before reaching for your phone.
  • If anything comes back, write a line or two in a notebook by your bed.
  • If nothing comes, that’s fine too.
  • Protect your sleep with simple habits: a darker room, an earlier phone-down and a calm bedtime routine.

If nightmares or poor sleep go on for weeks, please reach out for support; you deserve rest that restores you.

Sweet dreams.