REM - Your Brain’s Magical Cleanse!

Every night, while you are fast asleep, your brain quietly gets to work — replaying the day, sorting memories, processing emotions, and generating the mental clarity you will need tomorrow. This happens largely during REM sleep: a remarkable stage that accounts for roughly a quarter of your night. You cannot force more of it into existence, but you can easily sabotage it — and many of us do, without realising. Here is what REM sleep is, why it matters, and what you can do to protect it.