Public health aims to improve the quality of life through prevention and treatment of disease, including mental health. This is done through the surveillance of cases and health indicators, and through the promotion of healthy behaviors. Common public health initiatives include promotion of hand-washing and breastfeeding, delivery of vaccinations, suicide prevention, smoking cessation, obesity education, increasing healthcare accessibility and distribution of condoms to control the spread of sexually transmitted diseases.<br /><br />Modern public health practice requires multidisciplinary teams of public health workers and professionals. Teams might include epidemiologists, biostatisticians, physician assistants, public health nurses, midwives, medical microbiologists, economists, sociologists, geneticists, data managers, environmental health officers (public health inspectors), bioethicists, gender experts, sexual and reproductive health specialists, physicians, and even veterinarians.<br /><br />Like in other nations, access to health care and public health initiatives are difficult challenges in developing countries. Public health infrastructures are still forming in حthose countries.<br /><br />Keywords: health , importance,society<br />Prof Dr.Mazin Hadi kzar<br />Al-Mustaqbal University College<br />[email protected]