A special edition of Scientific American features six articles about human aging. Topics include Alzheimer's, gender and longevity, anti-aging pills, the biological clock, and the roots of cancer. The narration is smart and direct. The actor's natural pacing gives the articles a conversational tone. His clear enunciation means no ideas are lost; in particular, he handles scientific explanations with ease. Straightforward narration means all ages can access this material. Still, don't expect young listeners to care about old age just yet…
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