Vehicle and Method of Controlling the Same

A vehicle includes a first sensor configured to measure a respiration temperature, a facial temperature, and a heart temperature of a user, a second sensor configured to measure a carbon dioxide concentration in a respiration of the user, and a controller configured to determine a respiration volume and a respiration cycle of the user based on the first sensor, based on the measured carbon dioxide concentration in the respiration being greater than or equal to a predetermined carbon dioxide concentration, compare each of the respiration volume and the respiration cycle with a predetermined respiration volume and a predetermined respiration cycle, and based on the comparison result, output an alarm signal corresponding to each state of an awakening state or a sleeping state in response to a determination that the user is in the awakening state or the sleeping state.