The University of Arkansas defines the average all around body weight of an adult to be roughly 70 kilograms or 154 pounds (1pound is about 0.4539 kg). But that clearly cannot be 100% accurate. I myself weight in at 79 kg (175 lbs), yet I am not obese or overweight. There are factors to consider.
Nerves. Nerves are bundles of axons in the peripheral nervous system (PNS) that act as information highways to carry signals between the brain and spinal cord and the rest of the body. Each axon is wrapped in a connective tissue sheath called the endoneurium. Afferent, Efferent, and Mixed Nerves. 2  Some of the nerves in the body are specialized for carrying information in only one direction, similar to a one-way street. 3  Nerves that carry information from sensory receptors to the central nervous system only are called afferent nerves.
Sensory neurons connect sensory receptors to the CNS. The CNS processes the signal, and transmits a message back to an effector organ (an organ that responds to a nerve impulse from the CNS) through a motor neuron. The PNS has two parts: the somatic nervous system and the autonomic nervous system.