Biologists are quietly rewriting what it means to be alive, and the human body has become one of their strangest frontiers.

This undated photo provided by the Oregon Health & Science University in October 2024 shows Drs. Erin Yamamoto, left, and Juan Piantino, who used special imaging to spot a long-suspected pathway the ...

Your gut has an obvious job: It processes the food you eat. But it has another important function: It protects you from the bacteria, viruses, or allergens you ingest along with that food. “The ...