the brain
Brain organoids are helping researchers, but their use also creates unease
Pea-size clusters of human cells called brain organoids inspire both hope and fear. Experts are debating how scientists can responsibly use these bits of gray matter.
These brain implants speak your mind — even when you don’t want to
Brain-implanted devices that allow paralyzed people to speak can also decode words they imagine, but don't intend to share.
