Kavita Batra (Medicine) and Ravi Batra (Public Health) (as a part of GBD 2021 risk factors collaborators) contributed to a recent study, "Global burden and strength of evidence for 88 risk factors in 204 countries and 811 subnational locations, 1990–2021: a systematic analysis for the Global Burden of Disease Study 2021," published in Lancet. This study summarizes GBD 2021 methods and present estimates of risk factor exposures and their relationships with health outcomes for 88 risk factors and their combinations.