His eyes left her face as he tried to formulate a proper answer. He simply nodded for a moment, understanding her confusion, taking off his right glove so he could get to some of the snacks. Eating helped him think in some ways.

"Cryostasis," he eventually said. He really hadn't intended the conversation to focus on his own state. "It's, uh. I don't know how it works, exactly. They freeze you, in a way you can be... thawed later. So you're still alive." His ungloved hand went to the back of his neck to scratch it as he tried to segue into what he was meaning to say.

"When Steve crashed. He got frozen in the arctic. Same kind of thing, just. The serum did what was needed to keep him alive."

Halfway through his last sentence, he began to watch Carter carefully to see how she would react.