The human brain is an organ that possesses a vast potential for adaptation and change in response to experience. This mutability, which is referred to as brain plasticity, enables humans to solve new problems, learn, and forget. Research reveals two important insights into brain plasticity: (1) Plasticity is influenced by a surprisingly large number of life experiences. (2) The brain retains plasticity into senescence, although the developing brain is likely to have greater capacity for change.