Fact Check: Does It Take More Muscles to Smile or Frown, or Is It Just a Myth?
Posted on July 14, 2026 by Alfie Turner
Verdict: False The claim that frowning uses more muscles than smiling is a myth. There is no reliable scientific evidence that proves frowning uses more facial muscles than smiling, as the number of muscles involved varies by individual and specific facial expression. KEY POINTS No source agrees on the numbers. Figures swing from four to […]