The Unexpected Healing Power of a Cat's Purr

Contrary to previous beliefs, new research suggests that cats' purring is not caused by voluntary muscle contractions but rather by the myoelastic aerodynamic theory of phonation. The study found that connective tissue masses in the vocal folds of cats allow them to produce self-sustained low-frequency oscillations without neural input or muscular contractions. While muscle contractions may still play a role, the research indicates that air dynamics trigger the vibration mechanism. The article also explores the various reasons why cats purr, including communication with their mothers, wound healing, and the production of serotonin. However, some experts argue that the study's focus on isolated larynx function overlooks the complexity of a living cat's systems.