Red light therapy claims to heal wounds, improve pain and reduce wrinkles. But the evidence for it working is dim | Gideon Meyerowitz-Katz

The world of wellness is constantly expanding. There are new fads coming out almost every week, from the weird new mushroom powders that are suddenly essential for everyone’s health to the newest diet that is supposed to shave kilograms off your figure. It’s a quagmire of unproven, disproven…