Male DNA found in female brains may provide health benefits
Researchers at the Fred Hutchinson Cancer Research Center in Seattle have found that female brains often contain male DNA. The study found that male DNA is transferred to females during pregnancy and can travel to the brain. This process, called microchimerism, happens when mothers and their fetuses exchange cells and other genetic material. The study examines women with and without Alzheimer's disease to try to determine whether the male DNA provides health benefits to the females.