Dangers of exposure to “white” light
Date: 14.9.2011
White" light bulbs that emit light at shorter wavelengths are greater suppressors of the body's production of melatonin than bulbs emitting orange-yellow light, a new international study has revealed.
Melatonin is a compound that adjusts our biological clock and is known for its anti-oxidant and anti-cancerous properties.
The fact that "white" artificial light (which is actually blue light on the spectrum, emitted at wavelengths of between 440-500 nanometers) suppresses the production of melatonin in the brain's pineal gland is already known. The light-emitting diode (LED) bulb, which gives off a white light, suppresses melatonin at a rate more than 5 times higher than the high-pressure sodium (HPS) bulb.
