Most of us are careful when it comes to protecting ourselves against the damaging effects of UVA and UVB rays, slapping on sunscreen to reduce our exposure. But there’s another type of light that can do harm – blue light.
This high-energy, short-wavelength light, known as a High Energy Visible light (or HEV), sits on the spectrum between ultraviolet and infrared radiation.
One of its main sources is sunlight, but we are also subjected to it from mobile phones and streetlights, and exposed to its
