Tsukuba, Japan—During deep sleep, brain wave amplitude increases, and "δ (delta) power," a key objective indicator of sleep quality, is observed; higher delta power corresponds to deeper, more ...

Multitasking usually lowers productivity because most people are “task switching,” which creates a mental “switch cost” that slows processing and reduces accuracy. Switching between tasks strains ...

In today’s fast-paced and digital work, multitasking feels like a superpower. We answer emails during Zoom calls, walk on the treadmill while taking meetings, or flip between chats and work ...