Spermines are a kind of chemical found in the body.
Spermines are a normal part of the body's chemistry.
Examples:
The doctor said that the spermines in his body were at a good level.
Spermines help the body in many ways.
She learned about spermines in her science class.
The spermines in the body are like little helpers.
There are many different kinds of spermines in the body.
Spermines are important for the body to work right.