Sensory processing disorders are conditions that affect how the brain processes sensory information. They can cause over or undersensitivity to sensory information, including sight, sound, and touch.

Sensory overload is the overstimulation of one or more of the body’s five senses. People will respond differently to feeling overstimulated, but symptoms often include anxiety, discomfort, and fear.

NPR's Audie Cornish speaks with author Lindsey Rowe Parker and illustrator Rebecca Burgess about their new children's book Wiggles, Stomps and Squeezes Calm My Jitters Down. We all know the five ...