Light At Night Not A 'Bright' Idea

 

 According to the article natural nighttime light is healthier than harsh artificial light — especially LED (light-emitting diodes) white light, which suppresses the brain's night time production of Melatonin needed to regulate our biological clocks, behavior and health. White LED light (which is actually blue light on the spectrum) is emitted at short wavelengths of between 440-500 nanometers. The study showed that this type of light suppresses the body's production of Melatonin five times more than the orange-yellow light given off by traditional high-pressure sodium (HPS) bulbs. Metal halide bulbs, often used for stadium lighting, suppress Melatonin at a rate more than three times greater than the HPS bulb. So next time you buy your lightbulbs you might want to check what type they are before you buy them.