In “Cooling Down Our Brain,” Jason Peters talked about how researchers proved that self-control can be developed by specific mental exercises. He explained an experiment named “the marshmallow test” and how the result of the experiment showed that children who had self-control became more successful in their lives than those who did not have it. The author further stated that additional research showed that the human brain has “hot” and “cool” areas and everyone can train the “cool” part to control the impulses.