Aislamiento y demencia - Por qué debemos proteger nuestros oídos | DW Documental

Picked one by one from a mixed channel. Transcript check: both title readers certain; 4 of 5 sampled certain picks confirmed by transcript, none failed. Channel rule: Include only documentaries whose primary aim is to explain science, technology, engineering, environment, medicine or history (e.g. deep-sea mining, fog catchers, cargo sailing ships, the Renaissance, human origins, longevity research), and exclude current-affairs/political reportage, human-interest and social exposés, travelogues, sports features and sensationally framed titles.