Neuron: A nerve cell that receives and sends electrical signals over long distances within the body. A neuron receives electrical input signals from sensory cells (called sensory neurons) and from other neurons.
Photo Credit Claudio Beduschi/iStock/Getty Images. If you're looking to build muscle, understand that alcohol consumption can hinder your results in multiple ways. In addition to directly reducing muscle protein synthesis, alcohol can interfere with hormones that are necessary for building muscle. Furthermore, alcohol can decrease important molecules and nutrients that supply the energy required for muscle-building workouts.
Best Answer: Alcohol or ethanol affects the human nervous system by inhibiting signals between the brain, nerve endings and spinal cord. When people drink, their bloodstream absorbs the alcohol and nervous system functions slow down dramatically--this is the buzz or numbness people commonly feel after drinking.