Temperature and Thermal Comfort Temperature, light, and air quality are invisible forces that profoundly affect cognitive performance. You do not consciously notice them when optimized, but you feel their absence when they are wrong. A room two degrees too warm makes thinking sluggish. Insufficient lighting creates eye strain and fatigue. Poor air quality reduces oxygen to the brain, impairing all cognitive functions. These variables are measurable, controllable, and produce dramatic performance differences. Understanding optimal ranges and implementing them transforms any workspace from adequate to exceptional. Studies show temperature variations of just a few degrees changing typing accuracy by 10%, cognitive...