Specifically, it appears that exercise stimulates neurons (nerve cells) to grow in the hippocampus, the part of the brain responsible for memory. (canadianbusiness.com)
Studies done of neglected children who did not receive adequate affection from another human being showed that these poor babies often suffered from chronic stress, a condition which may negatively effect the parts of the brain responsible for memory, focus and learning. (babygaga.com)
A study by Luby and other WUSM researchers showed that a mother's love had a physical effect on the size of her child's hippocampus — the area of the brain responsible for memory. (blog.cloudb.com)