1.
alive and well, in good health
Describes a person who is alive and in good health, especially when there might be reason to worry about them due to age or circumstances.
2.
going strong, still active
Used figuratively for things, organizations, or traditions that continue to thrive or function well.
A na-adjective that functions primarily as a predicate (〜は健在だ). Rarely used as a noun modifier with な. Often used when reporting on the well-being of elderly people or the continued vitality of something that might be expected to have declined.