Are there sounds around us that we can't hear?

Are there sounds around us that we can't hear?

From Ask the Naked Scientists by Dr Chris Smith

June 12, 2026 · 21 min · Episode 792

About this episode

Dr Chris Smith and Saskia Falken discuss various scientific questions including heart health, sounds we can't hear, and organ regeneration.

What's the impact of sodium on our heart health? Are there sounds around us that we can't hear? Why do teeth have nerves and a blood supply? What controls our emotions? Can other primates and mammals have colourblindness? Why can't certain organs regenerate themselves, whilst others can? Dr Chris Smith and Saskia Falken have the answers... Like this podcast? Please help us by supporting the Naked Scientists

People in this episode

Host: Dr Chris Smith

Guest: Saskia Falken

Topics covered

  • heart health
  • sounds
  • teeth
  • emotions
  • colourblindness
  • organ regeneration

Keywords

  • sodium
  • heart health
  • sounds
  • teeth nerves
  • emotions
  • colourblindness
  • organ regeneration

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