How does the human brain work and which part of the brain does not work at all?

The cortex is the outermost layer of brain cells.

Explanation:

Your brain contains billions of nerve cells arranged in patterns that coordinate thought, emotion, behavior, movement and sensation.

If you brain is not working you need to destress.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.