Technologies for mitigating a physiological condition include a wearable computing device coupled with a head-mounted display and sensor(s). The wearable computing device may receive sensor data indicative of a physical attribute of the user while displaying information on the head-mounted display. The wearable computing device analyzes the sensor data to detect a physiological condition of the user and, if detected, applies a mitigation strategy to mitigate the physiological condition. The detected physical condition may be a nausea condition or a seizure condition. To reduce potential risk to the user, the wearable computing device may buffer information to be displayed by the head-mounted display, analyze the display information based on risk factor rules to determine whether the display information presents a potential risk to the user, and reduce the display rate of the head-mounted display in response to the potential risk to the user. Other embodiments are described and claimed.