I think it's liquid aggravation that circulates through his veins, and not regular blood

Friendship is held to be the severest test of character. It is easy, we think, to be loyal to a family and clan, whose blood is in your own veins.

The patriot blood of my father was warm in my veins.

He is being nibbled to death by ducks.

--More Later, Less the Same

In regular cells, like in bone and blood, the cells divide. But brain cells do not normally divide. The great majority will not divide. The neurons you're born with are pretty much what you have at end of life.

What is happening to me happens to all fruits that grow ripe.
It is the honey in my veins that makes my blood thicker, and my soul quieter.