Age brings many "gifts" most of them unwanted and boredom is probably one of the least threatening since you can address it without doctors, operations or pills everyday.
In the 60's there was a popular book by Sanuel Beckett called "Waiting for Godot" which I see as an allegory for old age and the inevitable consequence - here's a synopsis.
Waiting for Godot, tragicomedy in two acts by Irish writer Samuel Beckett, published in 1952 in French as En attendant Godot and first produced in 1953. Waiting for Godot was a true innovation in drama and the Theatre of the Absurd’s first theatrical success.
The play consists of conversations between Vladimir and Estragon, who are waiting for the arrival of the mysterious Godot, who continually sends word that he will appear but who never does. They encounter Lucky and Pozzo, they discuss their miseries and their lots in life, they consider hanging themselves, and yet they wait. Often perceived as being tramps, Vladimir and Estragon are a pair of human beings who do not know why they were put on earth; they make the tenuous assumption that there must be some point to their existence, and they look to Godot for enlightenment. Because they hold out hope for meaning and direction, they acquire a kind of nobility that enables them to rise above their futile existence.
Being bored whilst waiting for the inevitable surely must be a waste of those precious days.