Question

Riddle : Find The 9 Letter Word
Solve if you can. It is a 9 letter word, If you lose it you die, If you have 234, you can 1234, 56 is one type of disease, 89 indicates exact location and time, 2 and 7 are the same letters, 3 and 8 are the same letters, 5 and 9 are the same letters.

Answer 1

Heart beat is the correct answer.
234-ear you can 1234-hear, 56-TB is one type of disease, 89-at indicates exact location and time.