For example a person has food, water, clothing and shelter, this person will start looking for safety in his area or will start looking for stability. The hierarchy of needs has undergone changes over the years, but still refers to the original hierarchy of needs. Physiological needs are generally met for most people around the world. We still try to meet security needs in foreign countries, for example in war. People who have achieved love and belonging may have difficulty forming strong relationships. People who need esteem are probably still there, it is difficult for most people to satisfy this need and achieve self-realization. It is rare for people to achieve self-realization before they die. Maslow's Hierarchy of Needs represents part of a major shift in psychology. Most people who study psychology look at people who have psychological problems. Maslow studied on people who are psychologically healthy. In a study published in 2011, researchers at the University of Phoenix tested the hierarchy of needs. These researchers found that although satisfaction of these needs is important for happiness, people from different cultures achieved self-actualization with some unmet needs. This research showed us that Maslow's hierarchy of needs has been proven