The 25 countries with the oldest populations in the world

Tech Insider : Travel, Business
Buildings in Milan, Italy.
Italy has the third-highest percentage of residents aged 65 and older in the world.

Sean Pavone/Shutterstock

America's oldest man relied on daily walks, unprocessed food, and hobbies to stay lucid until 110 years old

Tech Insider
An elderly man holds a piece of writing on a notebook
Morrie Markoff was America's oldest man at age 110, and was a writer, photographer and sculptor.

Courtesy of the Markoff family

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