06/10/2015 04:49 pm ET

Why This Doctor Prescribes His ADHD Patients 'Parks' Instead Of Pills

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In the last decade, we've seen an increase in the number of drugs prescribed to children. But, pediatrician Dr. Robert Zarr has pioneered a program to use outdoor spaces to improve mental health among adolescents. He joins Nancy on HuffPost Live.

Watch the video here.

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