The Link Between Denisovan Genes and Modern Depression

A new study suggests that interbreeding between ancient humans and Denisovans, an extinct human species, has resulted in genetic adaptations that make modern humans more susceptible to mental health issues like depression. Researchers identified a specific gene variant, SLC30A9, predominantly found in East Asians, which is responsible for zinc regulation and metabolism. This variant is believed to have been acquired through interbreeding with Denisovans. The study also found that imbalances in zinc levels can contribute to various psychiatric disorders. While the genetic variant may have enhanced adaptability to cold environments, it also increased the risk of mental illnesses. Further research is needed to understand the full impact of this genetic variant on mental health.