Your brain is at its best for just 2–3 hours a day: Sahar Yousef

Cognitive neuroscientist Sahar Yousef said everyone has roughly two to three hours each day when their brain performs at its best, adding that the traditional 9-to-5 schedule was not designed around these natural rhythms. She said understanding one's chronotype can help protect this peak window, while skipping a midday break may weaken the second peak for biphasic people.