As we grow older, our brains reorganize themselves, pruning and streamlining nerve fiber linkages to reduce overall network connectivity while selectively preserving long-distance connections that are crucial to information integration.

Now, a team led by Newcastle University in the UK has found this brain streamlining starts earlier in girls, suggesting it may explain why they mature before boys in their teen years.

via Girls’ brains reorganize earlier, may explain their faster maturity – Medical News Today.