Andrew Huberman· PhD
Red light of the sort used in these studies was able to reduce the amount of reactive oxygen species in the rods and cones and to rescue the function of this particular cone type, the short wavelength and medium wavelength cones, which if you think about the study, is a little bit surprising, because it was red light and near-infrared light, not short wavelength light, that was used in order to create this improvement in cellular function.