Which brain region is most active in coordinating balance and movement?

The cerebellum, located at the back of the brain, coordinates movement, posture, timing, and balance. Although it is much smaller than the cerebrum, it contains an enormous number of neurons, often estimated to be around 80% of all neurons in the human brain. It fine-tunes movements so they are smooth and accurate rather than jerky. The cerebellum also contributes to some cognitive and emotional functions. Its role is crucial for tasks like walking, speaking, and playing instruments.