Nisa Khan is a scientist with a strong focus on lighting and, specifically, LED lighting and its dangers.
LED stands for Light Emitting Diode. It's a type of light source that uses a semiconductor to emit light when an electric current passes through it. LEDs are super efficient, last ages and don't get hot like old-school bulbs. Everybody uses them and they're great. I use them in my studio (but probably shouldn't).
Looks awesome but how does it impact your health?
However, as Nisa argues, the convenience comes at a cost.
Her discussion with me is quite scientific and requires concentration but the gist is that LED lighting is harmful because it is not only artificial but also two-dimensional, unlike the three-dimensional light from the sun, a candle or even an incandescent bulb (which uses heat).
☀️ In other words, sunshine and candles are the healthiest because they're natural, followed by incandescent bulbs.
