How does the consumption of marijuana affect driving ability compared to being sober?

The consumption of marijuana significantly impairs driving ability, primarily by affecting reaction time and attention. When a person uses marijuana, the active component, THC, impacts areas of the brain responsible for coordination, motor skills, and decision-making. This results in slower reaction times, making it difficult for drivers to respond promptly to unexpected events on the road, such as sudden stops or obstacles.

Additionally, marijuana can cause a decrease in attention span and focus, leading to distractibility. This impairment not only affects the driver's ability to navigate but also their capacity to assess their surroundings effectively, increasing the risk of accidents. Driving sober allows individuals to maintain full cognitive function, enabling quicker reflexes and greater awareness of their environment, both of which are crucial for safe driving.