So crying actually helps you to release certain chemicals from your body.
The act of murder appears to release chemicals in the brain.
The chemicals released initiated a change in the local blood vessels.
The antibodies tell cells in your body to release certain chemicals.
Sexuality happens by releasing chemicals in the brain which are like drugs.
It also might affect how you release chemicals that regulate blood pressure and flow.
Not only that, these messages seem to be carried in the chemicals released by cells when they're injured.
When a person is sleeping, the parasympathetic system releases other chemicals.
Some even release allelopathic chemicals that prevent other plants from growing.
When you're stressed, the body releases inflammatory chemicals that age the skin.