Looking for a word that means " remain active until the day youu die"

Hello and thank you for your question.

I believe I have it:

Persevere ? to keep doing something in spite of difficulties; to
refuse to quit even when the going is tough.
Vocabulary lists
http://www.wbps.org/pages/teachers/armstrong/vocabularylists.htm

Search terms used:
persevere "refuse to quit"

Sincerely,
Richard-ga

Lucky? 

;-) K~

Robust?

tlspiegel

evelina-ga,

I don't believe there is a single word in the English language which
conveys exacly that meaning. The word "vivacious," from Webster's
dictionary, means, "lively; having great vitality." "Vitality," from
Websters, means, "the principle of life; vital force; vigor."

So, the closest way I can think of to describe " remain active until
the day youu die" would be something like, "She had a vitality about
her that stayed with her from birth until death," or something like
that.

I hope this helps.

Sincerely,

omniscientbeing-ga