An adaptive augmented reality (AR) guidance system providing procedure instruction data to a user using an equipment system to perform a procedure. The AR guidance system gathers user condition data (e.g., electroencephalography (EEG) data, electrocardiography (EKG) data, near infrared skin spectroscopy data, skin galvanometry data, heart rate data, heart rate variability data, respiratory data, radiation dosimetry data, eye movement data, pupil dilation data, or two or more thereof) related to a user state, and generates, re-generates, or modifies the procedure instruction data if the user condition data indicates the user is in a state of physical, mental, or emotional impairment, such as fatigue, cognitive overload, radiation exposure, toxin exposure, stress, illness, depression, intoxication by alcohol or a drug, a mismatch between the user's perceived skill level and true skill level, or two or more thereof. By modifying the procedure instruction data based on the user condition data, the likelihood of the user successfully performing the procedure increases.