That’s when I realized the noise had shifted – from green to white. My productive focus had faded into a gentle drowsiness. This experience made me wonder: why do these sounds have such a ...

You may have heard of white noise used to mask background sounds ... soothing sounds – and their theoretical effects on sleep, concentration and the relaxation response. The science is new ...

What I love: The sheer range of sounds you get with this white noise machine. I use the pink noise setting to fall asleep and the meditation or rainfall settings to focus while I'm working.

Increasingly, white noise machines are helping people to overcome noise pollution, as Christina Graham, sleep specialist and coach for Noom, explains. "Abrupt noise changes within our environment ...