Red lighting may improve alertness

Here is an article demonstrating a misleading title. Humans have a normal dip in alertness in the afternoon - hence the siesta in Spain for example. The study cited in this article showed that having people stare at a red light for almost an hour improved alertness as measured by brainwaves. However, the subjects did not report feeling more alert. So thinking that getting red light bulbs will stave off sleepiness is misleading and more studies are needed. Getting enough sleep and treating any sleep disorders will help more than the color of the lights in your office.