An international team of researchers has created a series of brain charts spanning our entire lifespan -- from a 15 week old fetus to 100 year old adult -- that show how our brains expand rapidly in early life and slowly shrink as we age. The charts are the result of a research project spanning six continents and bringing together possibly the largest ever MRI datasets ever aggregated -- almost 125,000 brain scans from over a 100 different studies. Although not currently intended for clinical use, the team hopes the charts will become a routine clinical tool similar to how standardised paediatric growth charts are used.