During the early 2000s, coloring books were marketed primarily to retirees and children, but a handful of psychologists began documenting its calming effect on stress. Those initial studies planted the seed for later workplace experiments, showing that simple, color‑filled activities could lower cortisol and free mental bandwidth for higher‑order tasks, establishing the foundational science behind the later productivity boom.
The first turning point arrived in 2013 when a Silicon Valley startup incorporated short coloring breaks into its sprint rituals, reporting a 12% lift in task completion rates. Media coverage amplified the anecdote, prompting HR leaders worldwide to pilot similar programs. By the late 2010s, coloring stations appeared in coworking spaces, and research from occupational therapists confirmed measurable gains in focus and creative problem‑solving.