Neuroplasticity

Neuroplasticity is the ability of the brain to change its default activity in response to stimuli by reorganizing how it works by modifying its connectivity. Humans lose their neuroplasticity peaking at 35 years of age (see figure 1), recent studies have shown this can be temporarily reversed by types of shock.

Figure 1. Neuroplasticity Vs Age.

The brain is neurochemical in nature, meaning it is part chemical and part electric. When these systems combine they work like hiking trails; the pathways that get a lot of traffic get smoother and wider, with brush stomped down and pushed back. The neural pathways that sit unused grow over, becoming less likely to be used. Your brain uses the more accessible pathways as it takes lower energy to do so. In times of crisis people nimble on their feet are of paramount importance.