Epidemiologists use various methods to study the impact of genes on health. Some common approaches include:
1. Genome-Wide Association Studies (GWAS): These studies involve scanning the genomes of many individuals to find genetic variations associated with specific diseases. 2. Twin Studies: By comparing the health outcomes of identical and fraternal twins, researchers can estimate the heritability of diseases. 3. Family Studies: These studies look at the health patterns within families to identify inherited genetic factors. 4. Mendelian Randomization: This method uses genetic variants as tools to infer causal relationships between modifiable risk factors and health outcomes.