Moroccans descended from Berbers, Arabs, and Black Africans exactly like the neighboring Maghrebians. The Berbers are the prehistoric populations of Morocco and are related to the wider group of Paleo-Mediterranean peoples. The Afroasiatic family may have originated in the Mesolithic period, perhaps in the context of the Capsian culture.
Epidemiologic triangle model of disease causation. A common model used in public health illustrates the relationships among an agent, a host and the environment. It applies to biological, chemical and physical agents.
What is an Epidemiologist? Epidemiology is the study of the distribution and causes of disease. It aims to solve or control health problems. Epidemiology integrates experiments, risk assessment, statistical analysis, surveys, and interviews to study disease patterns. Epidemiologists investigate patterns and causes of diseases and injuries that affect people. They try to reduce diseases and injuries through community education and policy. Environmental epidemiologists study diseases that are known or suspected to be caused by environmental factors.