The human brain weight approximately_________% of the body weight.

Brain

1. Every body function, including intelligence, memory, emotion, touch, motor skills, vision, breathing, temperature, and hunger, is controlled by the brain, a highly developed organ.
2. The spinal cord, which protrudes from the brain, is a part of the central nervous system, or CNS.
3. An adult's brain typically weighs three pounds (1300 to 1400 grams).
4. The brain of a newborn human weighs between 350 and 400 grams or around 3/4 pounds.
5. The brain makes up around 2% of an adult person's body weight.

Final answer: The human brain weight approximately 2% of the body weight.