Medically reviewed by Shaheen Lakhan, MD, PhD, FAAN Key Takeaways Happy hormones are neurotransmitters and chemicals that ...

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 ...

The article, titled "Emerging roles of immune cell-derived neurotransmitters in immunity and disease," published on March 17, 2026, in Immunity ...

When a person thinks, speaks, eats, walks, or just sits comfortably with all bodily systems functioning normally, the billions of cells that make up the brain and the rest of the nervous system are ...