Beta blockers act by blocking the β-receptors of the sympathetic nervous system, some specifically on β-receptors in the heart, and, in doing so, decrease the heart rate and blood pressure.

An international team of researchers has discovered a new component of the peripheral nervous system that acts by increasing energy metabolism in the body.

“Neuroanatomy textbooks, for example, describe the sympathetic nervous system as working by releasing noradrenaline at the nerve terminals ... It was also known that mural cells can detect NPY because ...