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1 week ago

What Time Should You Work Out? New Research Points to 1 Clear Window

There’s a long-running debate about whether when you work out matters as much as whether you do it at all. A study presented at the American College of Cardiology’s 2026 Scientific Session just added compelling data to that conversation, pointing to a specific morning window with measurably better heart and metabolic outcomes. Here’s what you need to know. What Did the 2026 ACC Study on Exercise Timing Actually Find? Researchers analyzed a year’s worth of Fitbit data from 14,489 adults enrolled in the NIH’s All of Us national study, tracking elevated heart rate lasting 15 or more consecutive m...