A new study published in Genome Biology suggests that mental disorders, such as schizophrenia, may be a developmental byproduct of our brain's evolution.

Humans have the most evolved and largest brains of all the mammalian species. Furthermore, our brains evolved rapidly compared to other species; this rapid evolution may have caused some underlying instabilities in the chemical and molecular processes of our brains.

This research studied the molecular and metabolic changes of our brain's over the span of human evolution and concluded that genes and how they are expressed tended to change as the brain evolved.

This research paves the way for a greater understanding of how the growth of our brains may have increased the occurrence of mental and psychological disorders such as schizophrenia.