Phobias are intense fears of something that poses little or no threat, affecting 33 million American adults. People like Kathy Machuga, who's afraid of the dentist, and psychologist Luana Marcus, who's afraid of cockroaches, share their experiences. Meanwhile, country music star Kenny Chesney talks about his journey to self-discovery and his love of the islands, and filmmaker Guillermo del Toro discusses his vision for a new cinematic version of Mary Shelley's Frankenstein. Additionally, Nick Thompson, CEO of The Atlantic, shares his passion for running and how it has helped him cope with personal turmoil.
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