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Recently, when critically injured during a battle with the villain Extremis who used a nanomachine culture, Stark injected his nervous system with a modified version of the same culture to save his own life. This essentially grew Stark a new body and internal organs, complete with the ability to store the inner layers of the Iron Man armor in the hollows of his bones, summoning and controlling it through direct brain impulses. He is also able to remotely connect to external communications systems such as satellites, cellular phones and computers throughout the world. In addition, the armor's operating system is now directly connected to Stark's nervous system, significantly increasing the armor's response time.