According to an aspect of the present invention, provided is a method for monitoring the bioactivity of a user, the method comprising the steps of: making at least one light emitting unit disposed in the head area of a user emit near infrared rays on at least one point on the head area of the user; making at least one first light sensing unit disposed in the head area of the user sense near infrared rays that are reflected from or scattered by the head area of the user, and making at least one second light sensing unit disposed at a position facing an eye area of the user sense near infrared rays that pass through the eye area of the user; and determining the state of the brain activity or the pulse of the user by referring to information on the near infrared rays sensed by the at least one first light sensing unit, and tracking the line of sight of the user by referring to information on near infrared rays sensed by the at least one second light sensing unit.
METHOD FOR MONITORING BIOACTIVITY OF USER, SYSTEM, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM