This $475 brain-fitness headband was designed to boost focus and cognitive endurance. I tested it to see if it's worth the hype.

IT causes mood swings, bloating, headaches, skin issues and changes in appetite. Yet premenstrual syndrome (PMS) is often not ...

So I charged the headband for its allotted three hours, then downloaded the Elemind app and paired the device with it. The trickiest part of the whole experience was my initial fitting of the ...