Fertility clinics are offering young mitochondria in controversial fertility technique

Nature, Published online: 28 July 2026; doi:10.1038/d41586-026-01935-5Researchers are alarmed that the procedure, which has not been rigorously studied, is advertised by clinics around the world.

Nature, Published online: 28 July 2026; doi:10.1038/d41586-026-01935-5

Researchers are alarmed that the procedure, which has not been rigorously studied, is advertised by clinics around the world.

Medical AI has a measurement problem

Nature, Published online: 28 July 2026; doi:10.1038/d41586-026-02125-zThe development of two medical AI assistants highlights an unnerving challenge: as the technology races ahead, what is the best way to evaluate what works?

Nature, Published online: 28 July 2026; doi:10.1038/d41586-026-02125-z

The development of two medical AI assistants highlights an unnerving challenge: as the technology races ahead, what is the best way to evaluate what works?

When physicians and AI work together, who is accountable? How to lay out medical liability

Nature, Published online: 28 July 2026; doi:10.1038/d41586-026-02315-9A staging system based on how big a role AI has in patient care can help to identify who is responsible in cases in which care fails.

Nature, Published online: 28 July 2026; doi:10.1038/d41586-026-02315-9

A staging system based on how big a role AI has in patient care can help to identify who is responsible in cases in which care fails.