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There really is a ‘mum’ voice: How first-time mothers can develop a deeper tone after giving birth 

  • Studies say first-time mothers’ voices can drop by almost a sixth of an octave
  • Discovery came as researchers studied tones of 40 women over ten-year period 
  • However the huskier voices reverted within five years to pre-pregnancy levels

First-time mothers can develop a deeper voice after giving birth, a study has found.

Their voices can drop by almost a sixth of an octave, says Dr Kasia Pisanski, of Sussex University, where researchers studied the tones of 40 women over a ten-year period. 

First-time mothers’ voices can drop by almost a sixth of an octave, says Dr Kasia Pisanski, of Sussex University

She said: ‘Women’s voices became relatively lower-pitched and more monotonous after giving birth than during pregnancy or before.’

But the huskier voices reverted within five years to pre-pregnancy levels.

The changes may be due to hormones or tiredness, said the study in the journal Evolution and Human Behavior.

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Read more at DailyMail.co.uk


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