Happiness in Denmark. The Blue Zones of Happiness. By Dan Buettner. Read by Alex Sobko.

Happiness in Denmark. The Blue Zones of Happiness. By Dan Buettner. Read by Alex Sobko. Copyright: © 2017 Dan Buettner. National Geographic Partners, LLC, Washington, DC, US. © 2023, Read by Alex Sobko © 2023, Record, edit, design, posts at social media by Alex Sobko, PhD, 8762728, South West IL (ישראל).