Follow your curiosity

What discovery has been shared with you?

FACTREE gives you something interesting to discover every day — and something worth talking about together.

Start with one fact. Explore it, go deeper, then follow whichever branch catches your imagination.

Choose subjects for a surprise

Exploring any topic

Begin your discovery

Your next discovery is one click away.

Choose one or more subjects above, or leave Any Topic selected and let curiosity decide.

Biology

Steroidogenesis Pathways and Adrenal Insufficiency

Quick fact

The adrenal cortex produces over 30 different steroids, yet all are derived from a single precursor: cholesterol. A defect in just one enzyme, 21-hydroxylase, accounts for 95% of congenital adrenal hyperplasia cases.

Why this is interesting

Your body produces its own hormones from cholesterol, but what happens when the assembly line breaks down? The result can be a life-threatening emergency called adrenal insufficiency.