Add Yahoo as a preferred source to see more of our stories on Google. Think coloring is for kindergarteners? Think again! Well, it totally is, but it's also for grown-ups in need of stress relief.

All images courtesy of Two Kids and a Coupon Sunflowers are some of the most beautiful and cheerful flowers in the world.

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 ...