Highway hypnosis, also known as white line fever, is a trance-like state in which drivers become disoriented and unaware of their surroundings. Despite being able to operate the vehicle, drivers may not be fully aware of their actions, such as moving through traffic and making turns. This condition often occurs during long drives on highways or monotonous roads with few changes in scenery. It is characterized by a dulled sense of awareness, inability to recall parts of the drive, feeling of floating outside one's body, missing multiple exits or turns, zoning out for extended periods, excessive yawning, heavy eyelids, and stiffness after arriving due to lack of movement. Highway hypnosis impairs reaction times and attentiveness, significantly increasing the risk of accidents and potentially leading to more severe injuries and fatalities.