Inflated Promises of Exercise for Fitness and a Longer Life
May 30, 2025 — To be sure, exercise has many benefits – including the widely accepted benefit of fitness and a longer life. But a new study of causal inference linking fitness to reduced mortality suggests those benefits have been exaggerated. The problem is an old one: Confounding. The senior author of the new study, Marcel Ballin, explains: “We […]
