Chapel Hill, North Carolina, In the past 300 years, the human brain volume has increased as indicated by the size of the skull continues to expand. When viewed by gender, brain volume increased women more rapidly than men.

Similarly, body size continues to expand from time to time, the human brain volume also increased in the last 300 years. This is evident from the increased size of the crania, part of the skull that holds the brain.

Researchers from North Carolina University revealed that after examining 200 human skulls taken from several different periods. Some are measured in humans who lived in the 19th century, partly in the framework of the corpse from the grave of the 16th century and the 17th.

In general, the average male brain is larger than women, but both were increased because of human tendency to adapt to a more modern thinking. The difference is, the increase in volume more rapidly so that the female brain differences in men decrease.

Forensic expert who led the study, Ann Ross said there are many factors affecting the increase in brain volume. As quoted by LiveScience, these factors include changes in the level of welfare that affect diet and nutrition, changes in environmental conditions and genetic influences.

However, Ross did not mention the effect on the ability of the human brain. Apart from this study do not lead to it, the volume is not the only influential factor because although the small size abilities could be higher if the brain work more efficiently.

In addition to the size of the crania in the skull, this study also observed in other parts of the bone structure such as bearings supporting the jaw teeth. From time to mass, this section also always experiencing changes in both men and women.

The results of this study have been published in the journal Forensic Science International latest edition.