Dennis Kowalski of the Cryonics Institute
Dennis Kowalski has signed up to be preserved in a chamber that reaches freezing temperatures after death.
  • Dennis Kowalski is head of the Cryonics Institute, which preserves people after they die in the hope they'll be revived in the future. 
  • The remains are stored in liquid nitrogen tanks that reach -320 degrees Fahrenheit. The service costs $28,000. 
  • Kowalski told Insider he decided from an early age that cryonics made sense, even if coming back isn't a guarantee. 

This as-told-to essay is based on a conversation with Dennis James Kowalski, a 54-year-old resident of Milwaukee and the president of the Cryonics Institute. It has been edited for length and clarity.