ABSTRACT
The science here is epidemiology, which seeks to find the relationships between exposure to risks and undesired outcomes. Generally, epidemiology is a great tool for examining the complex interplay of causal factors. Epidemiology explains how risks get under the skin and produce the slugs and snails of development, rather than the sugar and spice. Epidemiology complements case studies and experiments clarify causes and pathways of diseases. Some studies include physical samples, which makes possible to do genetic analysis in Avon Longitudinal Study of Parents and Children (ALSPAC). Physiological studies that lead in the body interferes with enzymes, competes with calcium and affects neuro-transmitter release in the brain. The author talks about use data which are biological and medical, data which are psychological, and data which are demographic or economic or social; and it uses a range of statistical techniques to examine causes, to test models, to assess interventions, to develop theory, to test hypotheses, and so to inform policy.
