NBC Nightly News | Why Scratching an Itch Really Does Make You Itch More @nbcnightlynews | Uploaded October 2014 | Updated October 2024, 7 hours ago.
Researchers at the Washington University School of Medicine say the minor pain of scratching an itch produces serotonin, the "pleasure" hormone.
Researchers at the Washington University School of Medicine say the minor pain of scratching an itch produces serotonin, the "pleasure" hormone.