Need to avoid stressful surroundings

Stressful surroundings mess up your brain's capacity to create new neuronsvia Seed Magazine

The structure of our brain, from the details of our dendrites to the density of our hippocampus, is incredibly influenced by our surroundings. Put a primate under stressful conditions, and its brain begins to starve. It stops creating new cells. The cells it already has retreat inwards. The mind is disfigured.