London: Humans are losing intellectual and emotional capabilities because we no longer need intelligence to survive, a new study has claimed. Researchers from Stanford University claim the intricate web of genes which endows us with our brain power is particularly vulnerable to mutations - and these mutations are not being selected against our modern society because we no longer need intelligence to survive. However, we shouldn`t lose any sleep over our diminishing brain power - as by the time it becomes a real problem - technology will have found a solution making natural selection obsolete, the `Daily mail` reported."The development of our intellectual abilities and the optimisation of thousands of intelligence genes probably occurred in relatively non-verbal, dispersed groups of peoples before our ancestors emerged from Africa," said Dr Gerald Crabtree, lead author. In this environment, intelligence was critical for survival, and there was likely to be immense selective pressure acting on the genes required for intellectual development, leading to a peak in human intelligence.
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