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

Neuroplasticity and Synaptic Pruning During Adolescent Brain Development

Quick fact

During adolescence, the brain prunes about 50% of its synapses, a massive rewiring that improves efficiency but also makes the brain more vulnerable to mental health challenges.

Why this is interesting

Your teenage brain isn't just growing—it's actively editing itself. Why would it get rid of over half its neural connections?