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The Diagnostic Statistical Manual (DSM) is a dictionary that defines and classifies all mental health disorders. First published in 1952, the DSM is used by everyone from clinicians to pharmaceutical companies to policy makers. Since its inception, the DSM has been revised only four times — one such occasion was in 1980 when homosexuality was no longer defined as a mental disorder. In the fifth edition, another big change may come to the DSM. Autism is up for a redefinition which could potentially reduce the number of people considered "autistic" by half.

Animal scientist and author of Bright Not Broken: Gifted Kids, ADHD, and Autism Temple Grandin and Diane Kennedy, co-author and advocate for children with overlapping diagnoses, talk about those kids who are exceptional, both in their disabilities and their intelligence.

Temple Grandin has spent decades trying to get livestock treated as humanely as possible. In her new book Animals Make Us Human she examines how animals share the same core emotional systems that humans do.