MB Civic

George ..

There are several theories for why we are getting dumber, including [] women of high intelligence tend to have fewer children than do women of lower intelligence. [and]… “The reduction in human intelligence … would have begun at the time that genetic selection became more relaxed,” Dr. Gerald Crabtree, professor of pathology and developmental biology at Stanford University, told The Huffington Post in an email. “I projected this occurred as our ancestors began to live in more supportive high density societies (cities) and had access to a steady supply of food. Both of these might have resulted from the invention of agriculture, which occurred about 5,000 to 12,000 years ago.” .. [and] Exercise boosts intelligence … and our ancestors got a lot more exercise than we do! [etc etc]

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