Night work keeps hospitals open, factories humming and deliveries moving while most people sleep, but a growing body of research suggests that this schedule may quietly chip away at long‑term health.

Night shifts are part of everyday life for physicians in specialty training. They test both body and mind: Fatigue, stress, and the responsibility of caring for patients at night demand a high level ...

It had been a long day for Lt. Mariano Elias.  He was awake and present at the San Francisco Fire Station 4 in the San Francisco Mission District by 7 a.m. After a brief pause for coffee, it was time ...