Think coloring is for kindergarteners? Think again! Well, it totally is, but it's also for grown-ups in need of stress relief. Studies show that coloring relaxes the fear center of the brain—in both ...

Johanna Basford's intricate hand-drawn coloring books for adults have sold nearly 1.5 million copies worldwide. Courtesy of Johanna Basford/Laurence King Adulthood seems to be having a regressive ...