Adolescence is widely thought to be a time when the brain trims away excess neural connections, refining circuits through synaptic pruning. New research now suggests this view may be incomplete.

How do we learn something new? How do tasks at a new job, lyrics to the latest hit song or directions to a friend's house become encoded in our brains? The broad answer is that our brains undergo ...

Every thought, memory, and feeling we experience depends on trillions of tiny connection points in the brain called synapses.