To maintain correct time on the clock, the tower has been regularly checked by the clocksmiths of the city over numerous generations.

UNESCO: Culture

Older teenagers and young adults are less likely to be covered and checked regularly.

ECONOMIST: Children and cancer

If you wear glasses or contacts, you'll likely need to have your eyes checked regularly.

CNN: Nearsightedness

Muhly gets name-checked regularly on Web sites like Brooklyn Vegan.

NEWYORKER: The Long Haul

' It's the people who don't even know, who maybe don't get checked up regularly.

CNN: STDs still on the rise, report says