Before people seek medical help they try to interpret the symptoms themselves and often consult people in their lives or use 'self-help' measures. A study of 'everyday illness' in Finland including: influenza, infections and musculo-skeletal problems focused on reasons for consulting medical experts and explanations of illness. These common illness were examined not because of their seriousness but because of their frequency. The researchers explain five possible triggers that people seek medical aid: 1- the occurrence of an interpersonal crisis 2- perceived interference with social and personal relations 3- perceived interference with vocational & physical activity 4- sanctioning by other people 5- sufferers ideas about how long certain complaints should last. These kind of explanatory models are part of the process that people use to construct medical culture. They give meaning to illness and health, answer questions about personal responsibility about health and most importantly are part of the dialogue between patients' and professionals' illness explanations. It can help explore why some patients will follow a doctors instructions to the letter and others ignore them completely. A patient's explanation or understanding of their illness can be much broader than a physician's and this dynamic has become a major criticism of modern medical practice since it normally excludes the "social, psychological and experiential dimensions of illness."