What is "overstimulating"

Usage examples of "overstimulating".

Eutrophication, said Sidewise: Even now, artificial nutrients—notably phosphorus—were leaching out of the land into the lake and overstimulating the miniature ecology.

If the original aim of the weapon had been to impair analytical thought, it wasn't inconceivable that a wild version might end up overstimulating the very neural pathways it had been designed to destroy.