One way to avoid tedium in your workouts and keep you motivated might be

parts of the cerebral cortex that receive inputs from multiple areas; association areas integrate incoming sensory information, and also form connections between sensory and motor areas.

The skull is like a box that holds the brain, blood and CSF tightly together so that the brain doesn't move around and get damaged during everyday activities. After an injury, brain tissue may swell causing it to take up more room in the skull. This is called edema.

Explanation: