Cannabis and the developing brain

As legal cannabis becomes more common and products grow more potent, what do we really know about the risks? Yale psychiatrist Deepak D'Souza explores emerging evidence on brain development, mental illness, and why some young people may be especially vulnerable. Plus, when we should think twice about the answers we get from AI chatbots (https://news.yale.edu/2026/06/12/can-we-trust-ai-models-yale-researchers-explore-roots-chatbot-errors) ; the quiet evolution of salamanders (https://news.yale.edu/2026/06/22/secret-lives-salamanders) ; and how exercise may help our bodies fight cancer (https://medicine.yale.edu/news-article/to-fight-cancer-try-adding-exercise/) .