Fire up your neurons with neuroscience trivia on the brain, memory, dreams, meditation, consciousness, and neuroplasticity. From why we sleep to how habits rewire our neural pathways, the three pounds between your ears is the most complex object in the known universe. Put your brain to work and see how much it knows about itself.

Pick a topic to preview real questions and start a free game — every answer comes with an explanation, so you learn as you play.
Think you know the answers? Play to find out.
This sleep stage, characterized by rapid eye movements, is when most vivid dreaming occurs.
When you remember how to ride a bicycle without consciously thinking about the steps, you're using this type of "body memory" that survives even when other memories fade.
This organ, weighing about 3 pounds in adults, serves as the command center for the entire nervous system.
A repeated word or phrase used to focus the mind during meditation.
This phenomenon describes the eerie feeling that you have already experienced a current situation before.
This phenomenon explains why you can recognize your friend's face instantly but struggle to describe it in detail to a sketch artist.
These specialized cells are the primary information-processing units of the brain, transmitting signals through electrical and chemical means.
The recommended duration for beginners just starting a meditation practice.