Light-emitting diodes (LEDs) are so ubiquitous that it's easy to forget just how much society relies on these underappreciated technological wonders. Yet, the history of the LED goes back further than ...
A study led by researchers from the UPC's Terrassa School of Optics and Optometry (FOOT) shows that 1-minute stimulation with blue, green or red light activates several visual and non-visual brain ...