Revolutionary Breakthrough: Young Blood Rejuvenates Aging Mouse Brains

Scientists at the University of California, San Francisco and the University of Queensland have made a breakthrough in reversing brain aging in mice. By administering the protein PF4, naturally found in the blood, older mice regained cognitive function equivalent to middle age, while young mice showed improved intelligence. PF4 calms the immune system and reduces inflammation, which contributes to brain and body aging. Blood transfusions from younger mice, exercise, and the klotho gene were also found to increase PF4 levels. However, further research is needed to determine the effects on humans and potential side effects of suppressing the immune system.