Hormone Production In Free Brainwave.
Certain hormones can be produced over a particular stimulus. Certain stimuli received from the outside, sent by the body to the brain, then the brain as the main controller will determine which hormones must be produced and how many numbers are produced.
This process occurs throughout our lives, each of us to do something must have been through the process. When we cry, laugh, angry, in love, excited, scared, nervous, pain, sadness, compassion, etc.. All the senses of our body also works in accordance with the above process, namely Stimulation >>-- Brain >>--- action (reaction)