LifeWhy growing human brain tissue in a dish is an ethical minefield The increasing ability to create mini human brains in labs or integrate human cells into animal brains is rightly provoking worries about their use, says Alex Pearlman Comment
TechnologyVirtual reality lets doctors guide you through your own guts People at Boston Children’s Hospital are taking tours of their own digestive tracts. Their doctor can point out anomalies and what they’ll do to fix them ¿ìè¶ÌÊÓÆµ