DDT, PCBs, and others have been shown to cause cancer, nervous system damage, and hormonal changes, according to Rochman.
By lifting weights, our bones and muscles get stronger, our nervous system stays active, and our internal organs stay healthy.
Like the Internet that is its nervous system, it exists in small nodes and decisions emerge almost spontaneously.
nervous system n.
The system of cells, tissues, and organs that regulates the body's responses to internal and external stimuli. In vertebrates it consists of the brain, spinal cord, nerves, ganglia, and parts of the receptor and effector organs.
nervous system |
The system of neurons and tissues that regulates the actions and responses of vertebrates and many invertebrates. The nervous system of vertebrates is a complex information-processing system that consists mainly of the brain, spinal cord, and peripheral and autonomic nerves. It receives chemical information from hormones in the circulating blood and can also regulate secretions of the endocrine system by the action of neurohormones. The nervous systems of invertebrates vary from a simple network of nerves to a complex nerve network under the control of a primitive brain. See also autonomic nervous system, central nervous system, peripheral nervous system.