This is not a new idea, really. People have been coloring for many years but it has become something that adults have been getting back into lately to relax. Adult coloring books does not mean that there are designs you cannot hang in your cubicle at work or share with your kids. Rather they are complex and beautiful designs that are as limitless as the imagination of the person coloring.
Adult coloring books have been thought to help manage stress, release tension, and of course foster creativity. As a writer, I think this may be helpful for me to give me a creative kick in the butt. The colors can stimulate the mind in ways we could not entirely understand. I would even say that adults can foster all kinds of great things when they sit down after a long day and color.
I have recently become a fan of this wonderful medium again. I remember coloring as a child and getting lost in the designs. Now, as an adult I feel the peace of getting lost in the designs again and I love it. I recommend getting a set of colored pencils and picking up an adult coloring book that speaks to you and get coloring. Happy coloring and relaxing!