The Science Behind Unstoppable Itch Scratching

The cycle of itching and scratching can be difficult to break due to the evolutionary reflex developed to expel unwanted visitors on the skin. Scratching provides temporary relief by inflicting a little pain, which inhibits the sensation of itching. However, scratching further damages the skin and activates nerve fibers, intensifying the itch-scratch cycle. The neurotransmitter serotonin plays a role in this cycle, inhibiting pain but also activating itch neurons. Scratching also activates the brain's reward system, providing pleasure. While there are treatments available, efforts are being made to develop therapeutics that target neural pathways involved in itching. In the meantime, refraining from scratching can be challenging, but alternative methods like cold compresses or intense heat can help interrupt the sensation.