[Thanks to his scanning system, Baymax knows that something is up with Hiro, based on the fluctuations he's picking up. However, he's also aware that pushing the issue, especially when a patient is unwell, isn't going to help matters. The more time he spends around Hiro, the more tuned to the boy his systems get, he's learning more of what works best for his patient.

When his shut down command is given, he nods politely, then toddles off to his charger, deflating and compressing down, with the base shutting over him until he's next needed.]