Population research
Population screening is medical research with humans who do not suffer from health complaints. The research is focused on discovering diseases, hereditary predisposition to disease, or risk factors which increase the chance of disease. The most well-known type of population screening is for breast cancer (in women between 50 and 75 years), cervical cancer (in women between 30 and 60 years) and the Guthrie test (heel jab in babies).