21-Day Challenge: Identity

The original idea for a 21-day challenge came to me while I was completing my Brain Fitness Coach certification through the International Sports Sciences Association.

Most people know about neuroplasticity — how the brain can be intentionally reshaped. But fewer have heard about neurogenesis and its partner synaptogenesis — the formation of new neurons (and synapses) in the brain.

While neuroplasticity can reshape a brain in as little as 90 days (though some studies say it’s closer to 7-9 month...