How powerful really is your brain?

Inside your brain, there are billions of cells called neurons that send tiny electrical signals to each other. Together, these signals can generate up to about 20 watts of electricity… enough to power a small lightbulb!

…but what about when we're sleeping? You might think your brain powers down when you go to bed, but it’s actually buzzing with activity. While you snooze, your brain is busy sorting memories, cleaning out waste, and getting ready for the next day. Dreaming is one sign your brain is hard at work, weaving together your thoughts, emotions, and memories into stories while you rest. So next time you drift off, remember: your brain is pulling the night shift, making sure you wake up ready for whatever tomorrow brings!