The glands that secrete hormones comprise the endocrine signaling system. The term hormone is sometimes extended to include chemicals produced by cells that affect the same cell (autocrine or intracrine signalling) or nearby cells (paracrine signalling).
A fen is one of the main types of wetland, the others being grassy marshes, forested swamps, and peaty bogs. Along with bogs, fens are a kind of mire. Fens are usually fed by mineral-rich surface water or groundwater.
Fen is the son of Lauren Fenmore and Michael Baldwin. Fen was born prematurely and remained in the hospital for a while. Shortly after, his mother's nemesis, Sheila Carter, came to town with her face surgically altered to look like Phyllis Summers. Sheila kidnapped Fen, Phyllis and Phyllis' baby girl, Summer Newman.