Cryopreservation, or the practice of freezing dead bodies, has become a reality today. There are companies offering services where a person can freeze their body or just the brain with hopes of coming back to life someday.

Back from the dead: More companies enter the business of cryopreservation

Remember how in sci-fi films astronauts go into a cryosleep to pass the years ahead of them before they reach their destination? This keeps them alive while years pass by without the need for any food or other resources.

The rich are freezing their bodies in hopes of coming back to life in the future

Cryopreservation method can help in storing and reintroducing coral reefs to the wild. But the process requires sophisticated equipment including. Watch further to know more.

WION Climate Tracker: Cryopreservation method to save coral reefs