THE Nobel prize has been awarded to these two men of science for work on the chemical transmission of nervous impulses. It was known that the effects produced by stimulating sympathetic nerves were ...

When a stray thought niggles your brain, reminding you to stop biting your nails, you'll stop because you want to and because you can-your brain's cells have no trouble communicating the message to ...

Using human cancer cells, tumor and blood samples from cancer patients, researchers have uncovered the role of a neurotransmitter in the spread of aggressive cancers. Neurotransmitters are chemical ...

Neurons are the specialized cells that allow our bodies to transmit impulses, like factories that process inputs. They send signals that help us catch a ball, recognize a favorite song or pull our ...

The sinoatrial (SA) node is the natural pacemaker of the heart. It generates electrical impulses that cause the heart’s chambers to contract, setting the heart rate. The SA node typically generates 60 ...

Nearly all of Earth's organisms communicate with each other in one way or another, from the nods and dances and squeaks and bellows of animals, through to the invisible chemical signals emitted by ...

Nearly all of Earth’s organisms communicate with each other in one way or another, from the nods and dances and squeaks and bellows of animals, through to the invisible chemical signals emitted by ...