Why is constant driving at the same speed considered dangerous?

Constant driving at the same speed can lead to road hypnosis, which is a state of inattention or reduced awareness that can occur during long periods of monotonous driving. When a driver maintains the same speed without varying their driving behavior, it can create a hypnotic state where they become less alert to their surroundings. This lack of attention can hinder their ability to react promptly to changes in traffic, unexpected obstacles, or signals from other drivers, thereby increasing the risk of accidents.

Maintaining diverse driving patterns, such as varying speed, helps keep the driver's mind engaged and alert, reducing the chance of falling into a trance-like state. This is particularly a concern on long stretches of highways where the scenery can become repetitive, leading to a false sense of security and diminished vigilance.