Once the effects of a stimulant wear off the driver could quickly fall asleep.?

After the stimulating effects wear off, a driver may experience a sudden drop in energy and alertness, leading to an increased risk of drowsiness or falling asleep at the wheel. This is often referred to as a "crash" or "rebound effect," where the initial heightened state of alertness is followed by extreme fatigue. Such sudden sleepiness can impair reaction times and decision-making, making driving extremely dangerous. It's crucial for drivers to be aware of this risk and take appropriate breaks or rest when feeling fatigued.