"Chelsea Ake-Salvacion felt she was on health care’s cutting edge, working at a cryotherapy center in this Las Vegas suburb..."

"... that promised to help clients burn calories, reduce pain, strengthen immune systems and halt aging by embedding them in freezing tanks for a few minutes at a time."

In her off hours, she engaged in the practice... But last week, Ms. Ake-Salvacion, 24, was found dead in one of the tank...  Ms. Ake-Salvacion’s uncle said the coroner had told him his niece’s body was found “rock-hard solid.”...

The death raised questions about safety in the growing industry of cryotherapy, which is practiced by star athletes and celebrities but is rarely studied and not regulated by any one body. Today, there are cryotherapy centers in New York, Chicago, Los Angeles and elsewhere, though doctors do not agree on its benefits....

The top rated-comment (at the NYT) quotes "though doctors do not agree on its benefits" and says: "This suggests that some doctors agree, some do not. How about New York Times, you be more forthright and clarify that no doctors, no peer reviewed research, no science, supports the benefits of this? And how dare these snake oil sellers argue 'its definitely safe' but do not do it alone"