Can Adults Grow New Brain Cells? The Science Is Still Debated

For decades, the prevailing belief was that the number of brain cells in adults remained fixed. However, recent research challenges this notion, presenting evidence of adult neurogenesis (the creation of new brain cells). Studies primarily using animal models like mice have shown new neurons growing in areas like the hippocampus, crucial for learning and memory. Translating these findings to humans, however, is difficult due to limitations in research methods. Some studies employing radiocarbon dating have identified newborn neurons in adult human brain tissue, but results haven't been consistently replicated. Skepticism remains, with some scientists questioning the reliability of current evidence and suggesting potential misinterpretations. While conclusions remain uncertain, research into adult neurogenesis holds significant implications for treating brain injuries and neurodegenerative diseases.