Studies show that coloring relaxes the fear center of the brain—in both children and adults alike—so ... 25 Bloomin' Good ...

Adult coloring books have been ... Ink bleed-through can be a problem with coloring books, but she explains that the thick, dark pages between designs stop it from happening.

If you're an adult colorer looking for some advanced templates to challenge you, then break out the colored pencils because here are 25 free printable coloring pages for adults!