Your Body Has a Hidden Healing Trick

Your Body Has a Hidden Healing Trick

From Kurzgesagt Podcast: Science Revealed by Lynn Studio

May 23, 2026 · 1h 2m

About this episode

The episode explores the healing properties of saliva and its role in wound closure.

That instinct to lick a small cut might not be random—your saliva contains natural healing proteins like histatin, EGF, and Trefoil Factor 3 that help skin cells repair faster. Studies show these compounds can speed up wound closure and even support new blood vessel growth, which is important for healing. In lab tests, wounds exposed to saliva-related compounds closed faster than untreated ones. Scientists are still exploring how powerful this natural “built-in repair system” really is. Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support .

People in this episode

Host: Lynn Studio

Topics covered

  • healing
  • saliva
  • wound closure
  • biological repair
  • science

Keywords

  • saliva
  • healing proteins
  • wound closure
  • skin repair
  • blood vessel growth

Mentioned in this episode

Organizations: Kurzgesagt Podcast: Science Revealed

Products: saliva, histatin, EGF, Trefoil Factor 3

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