Research suggests simply watching the Olympics can help burn up to 540 calories over 90 minutes, equivalent to a 45-minute run.
A formula 'The Power of Celebration' calculates energy expenditure based on weight, how you watch, baseline time, celebration intensity, and time. For example, a football fan could burn 540 calories.
Tennis fans watching a 3-hour match could burn up to 432 calories, while athletics fans watching for 60 minutes might burn 162 calories, similar to a 30-minute walk.
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