The battle over new nerve cells in adult brains intensifies
New methods are needed to settle the debate
![nerve cells](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2018/03/030818_LS_neurogenesis_feat.jpg?fit=860%2C460&ssl=1)
NO SIGNS In a study of human brains, young nerve cells (green) were visible in the memory-related hippocampus of a newborn (left), but were rare in a sample from a 13-year-old (center). None were seen in adult brains, including this sample from a 35-year-old (right).
ARTURO ALVAREZ-BUYLLA LAB