How to heal from PTSD and other illnesses

With the world looking to him for support, David Moriarty is one of the few psychologists who can help people deal with mental illness and anxiety.

But the father of two, who was diagnosed with post-traumatic stress disorder after the 9/11 attacks, has struggled with depression and other mental health problems.

His latest book, A Mindful Life: A Psychological Memoir, tells the stories of a man who has battled through depression and anxiety in his work and family.

Al Jazeera English’s Mark Pemulis reports from Washington, DC.