The issue is how we breathe. The Basic Basic Exercise works well without the need for equipment. You need to try them all. One will work better then the others. Wholesome social skills and healthy innate preferences come more naturally when you are at peace inside yourself.
Successful people develop successful habits.
Steven Covey's books come to mind. Ones for example, that keep the survival brain in constant alert and sympathetic nervous system response working potentially death dealing overtime. A positive attitude can, with the help of the breath, detach from negative ideas and, even override a destructive toxic belief system. Paradigm shifts often come from conscious choice. You change your breathing pattern and consciously think constructive thoughts.