Emergency training is an essential tool to mitigate safety risks to vehicles, operators, and for mission success. NASA astronauts go through extensive training to prepare for such situations. Astronauts can experience acute stress during hazardous, potentially life-threatening, situations that may erode any prior training and diminish remedial performance. Even high levels of skill training can succumb to the stress associated with the existential threat from an emergency. Incorporating stress training into the emergency training process may prepare astronauts to respond more favorably to stressful events. However, the implementation of stress training is difficult due to resource limitations, wide-variation between individual’s stress responses, optimizing training to match user competency levels, and fidelity of the training environment.