Could this possibly be the explanation for my enormous cranium? via New Scientist: Neurons with more connections may store more memories What makes some people smarter than others? It could come down to your individual brain cells - the bigger and faster your neurons, the higher your IQ. If confirmed, the finding could lead to new ways to enhance human intelligence. Most intelligence research to date has identified brain regions involved in certain skills, or pinpointed hundreds of genes that each play a tiny role in determining IQ. To go a step further, Natalia Goriounova at the Free University Amsterdam in the Netherlands and her colleagues studied 35 people who needed surgery for brain tumours or severe epilepsy. Each took an IQ test just before the operation. Then, while they were under the knife, small samples of healthy brain tissue were removed and kept alive for testing. The samples all came from the temporal lobe. This brain area helps us make sense of what we see, recognise