Apart from giving you pneumonia?

"It might be," Nadia started raising her hand, "because I suspect the spell actually petrifies the person as an icestatue? If so, they shoudln't be able to breath... Though Muggle have said that a life of a human could be concerved in frosting. De-frosting has to be the tricky part. Anyways, extreme cold is bad for human health whatever way, it must tamper with their lives."