The brain sends messages through the neurons which travel the messages given from the brain to the part of your body.
It makes chemicals. For example, chemicals from and to the brain and stomach help you to know when you are hungry/full.
Spinal Cord.
The brain is pretty small, but it is way more powerful than you think. It is only 3 pounds, and it is the size of both your fists side by side.
if i am correct the brain sends messages to the rest of the body by sending pulses down your spine where it connects to the brain. most of the major parts in your body are connected somehow to the...