The National Institutes of Health (NIH) is offering a funding opportunity aimed at developing innovative theories and methods to understand the genetic architecture of complex human traits through the R21 grant mechanism, which excludes clinical trials. This initiative encourages interdisciplinary research that integrates genetic, environmental, and behavioral data to explore health-related traits, with a particular focus on population-scale genetic cohorts and advanced computational techniques. The total funding available is up to $275,000 over two years, with applications due starting January 16, 2024, and continuing through 2027. Interested applicants can find more information and guidelines at the NIH grants website or contact NIH Grants Information at grantsinfo@nih.gov for further inquiries.