Does an authoritative tone of voice really depend on how deep your voice is? A Durham University study, published in September 2026 in the journal Royal Society Open Science, put this belief to the test with an unusual experiment: not just audio recordings, but videos showing the whole person while they speak.
The result is more nuanced than you might think. A deeper voice makes a man seem stronger and more influential, but not more attractive. Above all, what people see weighs far more than what they hear.
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