Unit of obesity treatment and research at al-Kindy college of medicine, university of Baghdad in cooperation with the department of popular medical clinics organized a workshop entitled “impact of obesity on treatment of chronic diseases” within the college activities to introduce the latest developments in the area of diseases and methods of treatment. This workshop comes in the framework of the scientific cooperation with the popular medical clinics, health centers and those working in the ministry of health to achieve the logo “university in service of community”. The workshop was administrated by Dr. Faris Abdul Karim, director of the obesity research and treatment unit at the college, who gave a lecture in which he identified obesity as the medical condition in which excess fats are accumulated in the body causing an adverse effect on health, leading to reduced life expectancy or growing health problems that determines body mass index, weight, height and those who suffer from over weight (pre-obesity) have 25 kg / m 2 and 30 kg / m 2, more than 30 kg/m. The lecture pointed out that obesity increases the risk of many diseases, particularly heart disease, diabetes type II, breathing difficulties during sleep, certain types of cancer, osteoarthritis. Obesity is usually caused by a mixture of excess calories with a lack of physical activity and genetic influences, although in few cases it occurs primarily due to genes, endocrine disorders, medications and psychological diseases. The lecture emphasized that those who suffer from obesity eat little but increase in weight due to slow digestive processes. On average, they lose energy more than their counterparts. The first treatment for obesity is diet, exercise, taking drugs to reduce appetite or to prevent the absorption of fat. However, in advanced cases, surgery is performed (a balloon is placed into the stomach to reduce its size or reduce the length of intestines that leads to early satiation and reducing the ability to absorb nutrients). Obesity is considered as the major cause of death and that can be prevented worldwide since it is increasingly widespread among adults and children and obesity is one of the most serious health problems in the 21st century.