A Genome-Wide Association Study (GWAS) is a research method used to identify genetic variations linked to specific traits or diseases. By analyzing the genomes of many individuals, researchers look for common genetic markers that may be associated with particular conditions, such as diabetes or heart disease. This approach helps to uncover the genetic basis of complex traits. In a typical GWAS, researchers collect DNA samples from participants and compare their genetic information. They then use statistical methods to find correlations between specific genetic variants and the traits of interest. This can lead to a better understanding of how genetics influence health and disease.