“Visual over-stimulation is a distraction from concentration and evokes the same sort of reactions as over-stimulation from noise. But the source might surprise you. Even fussy clothing moving around can be a visual distraction, or too many people in the room, or too many machines with moving parts. For those who work outside, a windy day is a triple-threat—with sound, sight, and touch all being affected. Cars moving, lights, signs, crowds, all this visual chaos can exhaust the AS person. Back in the office, too many computer screens, especially older ones with TV-style monitors, and sickly, flickering, unnatural fluorescent lighting were both high on the trigger list. The trouble with fluorescent light is threefold: Cool-white and energy-efficient fluorescent lights are the most commonly used in public buildings. They do not include the color blue, “the most important part for humans,” in their spectrum. In addition to not having the psychological benefits of daylight, they give off toxins and are linked to depression, depersonalization, aggression, vertigo, anxiety, stress, cancer, and many other forms of ill health. It’s true. There’s an EPA report to prove it (Edwards and Torcellini 2002). Flickering fluorescent lights, which can trigger epileptic seizures, cause strong reactions in AS individuals, including headaches, confusion, and an inability to concentrate. Even flickering that is not obvious to others can be perceived by some on the spectrum.”