Personality refers to the thoughts, feelings, and behaviors characteristic of each person. It is relatively stable throughout life and is shaped by both nature and nurture. There are unlimited combinations of genetic inheritance and life experiences, which give rise to the uniqueness of personality. Health care is one of the many factors that contribute to personality. Health care encompasses both nature and nurture, as it deals with health related to genetics as well as health related to our experiences. Considering Maslow's hierarchy of needs as a theory of personality development, health care is a basic need, particularly a physiological need and a safety need. When basic needs are not met, personal growth is extremely difficult, making it almost impossible to achieve one's full potential. Access to quality health care promotes positive personality development. Because our personality develops during childhood and adolescence and then remains fairly constant for the rest of our lives, childhood and adolescence are the most critical years, in terms of personality development, to have access to health care. But before childhood, the prenatal environment and early childhood also have an impact: before we even see the world or know how to speak, our personality is formed. During the prenatal period, for example, it has been suggested that our temperament is inherited (Dennis & Hassol, 1983, p. 34). Proper prenatal care is important to prevent birth defects because the nine-month period in the intrauterine environment is an incredible period of development. Cells divide rapidly to form organs, including the brain, which is the control center of personality. It is also recommended that pregnant women have at least one prenatal visit in the middle of the document. Ensuring equal access to high-quality health care is perhaps the biggest investment we can make in our country, as it would significantly increase the number of healthy Americans. Children who are physically and mentally healthy are more likely to develop positive personality traits, such as altruism, ambition, optimism and compassion. When more people possess these positive traits, our entire society benefits. As Abraham Maslow stated in his work Toward a Psychology of Being (1962, p. 5), “…sick individuals make their culture sicker [and] healthy individuals make their culture healthier.” Improving individual health is one approach to creating a better world. Ensuring that children and adolescents, in particular, all have access to high-quality, age-appropriate healthcare is a real investment in the future of our country..