Illustration of a woman sitting under clouds and rain, depicting depression. By Andrii : https://stock.adobe.com/contributor/207302137/andrii?load_type=author&prev_url=detail
Photobiomodulation, the use of light waves to change human biology, has boomed in recent years for all kinds of purposes, at medical clinics and at home. We wanted to know what the science says — and doesn’t say.