Mini models of the human brain are revealing how this complex organ takes shape Lab-grown organoids are turbo-charging the study of human brain development and disease. By Alison Abbott

https://www.nature.com/articles/d41586-026-01025-6?utm_source=Live+Audience&utm_campaign=4b50fd2341-nature-briefing-daily-20260408&utm_medium=email&utm_term=0_-33f35e09ea-50432164 Organoids are transforming brain research Brain research using organoids is snowballing: these tiny, functional models of parts of the brain are being used to probe development, model neurodevelopmental conditions such as autism and schizophrenia, and test new treatments for brain diseases. And, as scientists make organoids that are longer-lived and more complex — and even connect them together into assembloids — the approach promises to teach us even more about our most important organ. As organoids advance, so does the urgency of the ethical challenges that they create, argues a Nature editorial. “Perhaps most crucial for this field is the concern that emergent properties, such as consciousness, might arise,” says the editorial. Brain organoids are a transformative technology — but they need regulation The potential benefits of organoids for fundamental research and medicine are huge. Efforts to establish proper boundaries for their use should be supported. https://www.nature.com/articles/d41586-026-01021-w?utm_source=Live+Audience&utm_campaign=4b50fd2341-nature-briefing-daily-20260408&utm_medium=email&utm_term=0_-33f35e09ea-50432164