OneEyedDiva is correct. Medical and NASA research on Stasis is being done.
NASA is, and has been for at least a decade, practicing putting bears in cryogenic stasis in hopes of perfecting it for long term, long distance space travel. They are using bears because they already hibernate in a form of stasis.
They are also using whatever they can learn from Hummingbirds who go into Torpo every night and spend most of each day in Torpo to survive coldest part of winter.
Full cryogenic stasis turns human cells to mush when thawed out. But, the Gentler milder Torpo/Hibernation stasis shows great promise.
Their biggest challenge is that people don't shut off their dreaming in stasis. In stasis they are paralyzed and unable to wake themselves up from a unpleasant or very bad dream. The concern is that when they are awakened at their space travel destination they will be mentally insane. They are trying to learn how to shut down the brain/dreaming so this wont happen.