Every new skill, habit, or memory isn’t built from scratch - it’s wired into your existing network. Neurons grow tiny branches called dendritic spines that connect with other cells. The more you use a pathway, the stronger and faster it becomes. Unused connections? They gradually fade, like forgotten shortcuts. And while most neurons don’t regenerate, special regions like the hippocampus can grow new ones - a process called neurogenesis. Still, memory and learning largely come from reshaping exi