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

When this part of the brain is engaged in deep work, it can think critically and ... Knowing when to focus deeply and when to switch gears can help you navigate modern life more efficiently ...

New research reveals that neurons can switch their migration strategy depending on whether they move on flat surfaces or through tight, crowded spaces.