Is it possible that the higher the IQ is at birth the faster the brain degenerates? Not just from a built-in process but also from stress due to lack of social

Is it possible that the higher the IQ is at birth the faster the brain degenerates? Not just from a built-in process but also from stress due to lack of social acceptance. This algernon process could imply that by 25, a physics PhD at 16 can only manage civil engineering.