Shrunken Heads
- Episode aired Mar 16, 2020
- TV-14
- 22m
![Secrets Unlocked (2019)](https://m.media-amazon.com/images/M/MV5BOTc0NjczZTgtYzE1NC00ZjNhLWFmMzAtOWM5ODJlYmRhNWJkXkEyXkFqcGdeQXVyNzI4MDMyMTU@._V1_QL75_UY281_CR1,0,190,281_.jpg)
A look at the science behind head-shrinking and how this ancient ritual exploded into a gruesome, Victorian-era craze.A look at the science behind head-shrinking and how this ancient ritual exploded into a gruesome, Victorian-era craze.A look at the science behind head-shrinking and how this ancient ritual exploded into a gruesome, Victorian-era craze.