According to a new study, driving more than two hours a day lowers your IQ.
Researchers conducted intelligence tests with people age 37 to 73 over the span of five years and found IQ scores dropped faster in middle-age participants who drove long distances as part of their day.
It seems driving so much affects the brain because the mind is less active in those hours. Also, driving causes stress and fatigue, which messes with the brain’s ability to function at a high level. (The Times)