Are we becoming more stupid? Human brain has been ''shrinking for the last 20,000 years''

It's not something we'd like to admit, but it seems the human race may actually be becoming increasingly dumb. Man's brain has been gradually shrinking over the last 20,000 years, according to a new report. This decrease in size follows two million years during which the human cranium steadily grew in size, and it''s happened all over the world, to both sexes and every race.

Over the past 20,000 years, the average volume of the human male brain has decreased from 1,500 cubic centimetres to 1,350 cubic centimetres, losing a chunk the size of a tennis ball,'' Kathleen McAuliffe writes in Discover magazine. Please click to continue this article...