Topological turning points across the human lifespan https://www.nature.com/articles/s41467-025-65974-8 Scientists map five different and distinct stages of human brain aging https://www.earth.com/news/scientists-map-five-different-stages-of-human-aging-throughout-life/ The brain goes through five distinct phases in life, with key turning points at ages nine, 32, 66 and 83