'Age' in the Bible

Jeroboam’s wife did so. She got up and went [twenty miles] to Shiloh, and came to the house of Ahijah. Now Ahijah could not see, because his eyes were dim from old age.

Now as for the rest of all the acts of Asa, all his might, everything that he did, and the cities which he built, are they not written in the Book of the Chronicles of the Kings of Judah? But during the time of his old age he had a foot disease.