Impact factors are important in Epidemiology research for several reasons: 1. Quality Indicator: High impact factor journals are often perceived as publishing high-quality research. 2. Career Advancement: Researchers often seek to publish in high impact factor journals to enhance their career prospects. 3. Funding: Funding agencies may consider the impact factors of journals where researchers have previously published when making funding decisions. 4. Visibility: Publishing in high impact factor journals can increase the visibility of a researcher's work.