What`s the big deal about "full" spectrum lighting?

All living things need the total spectrum of natural light to function at peak performance. Since average people spend 90% of their time indoors under artificial lighting, light quality is critical. Full spectrum lights simulate the balanced range of natural light. They reduce the glare that causes eyestrain, headaches, and stress. Reading becomes easier; heart rate, oxygen intake and blood pressure improve. They fight SAD syndrome (cabin fever) and you feel better!