King of the body: the brain.

In animals, the brain is the main organ that controls the body. The brain, which has a complex structure and function, manages the body through communication as needed in various animal birds. The human brain is the most capable and intelligent. The human brain has billions of encyclopedias. These encyclopedias are destroyed as we age. And do not become new. Thirty percent of the white part of the brain handles thinking and 60 percent of the gray part communicates. The brain communicates with chemical electrical processes. The human brain weighs about two percent of its body weight. Even though the brain is small, it uses about 50% of the total oxygen that the body receives.