Longevity

noun the state or quality of lasting or remaining unchanged indefinitely

• The concept of permanence is a key consideration in urban planning and infrastructure development.
• I'm looking for a job with more permanence and stability.
• I don't think this relationship has any real permanence, it's just a fling.
• The artist sought to capture the fleeting beauty of nature in a way that emphasized its contrast with the concept of permanence.

noun a region or area designated as having certain characteristics or restrictions, typically related to health or longevity

• The blue zone is designated for staff parking only.
• Hey, let's park in the blue zone so we don't have to walk far.
• I always try to snag a spot in the blue zone, it's the best.
• In the blue zone of productivity, you can accomplish anything.