The brains ability to reorganise itself by forming new neural pathways throughout our lives. Neuroplasticity allows the neurons, also known as nerve cells in the brain to compensate for any injury we may sustain or disease and to adjust their activities in response to new situations and changes in the environment.
— Definition

Neuroplasticity and the treatment of OCD

You may have heard of the saying, our brain is made of plastic. Of course, it's not actually made of plastic, but the term neuroplasticity, or brain plasticity refers to how our brains can physically change throughout our lives to adapt to new, different situations throughout our life times. Our brain has an amazing ability, whereby through changing our behaviour we can essentially reprogram the way our brain works, physically. More specifically this relates to how the brain can reorganise, and create new neural pathways at any given time in our lives. There is also evidence to suggest that when we learn how to change our own brains, the changes can match those that occur when takin medication.