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Michael Mosley as Self / Presenter / Journalist |
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Fauja Singh as Self / 100+ year old marathon runner |
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Luigi Fontana as Self / Professor, Washington University School of Medicine |
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Joe Cordell as Self / Calorie Restrictor on Optimal Nutrition (CRONy) |
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Valter Longo as Self / Professor, USC |
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Krista A. Varaday as Self / Professor of Nutrition, University of Illinois Chicago |
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Mark P. Mattson as Self / Professor, National Institute on Aging |
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Clare Mosley as Self / Wife / General Practitioner / Consultant |
| Production | Emma Chapman | Production Coordinator |
| Directing | Kate Dart | Director |
| Editing | Aidan Laverty | Editor |
| Production | Laura Davey | Production Executive |
| Writing | Kate Dart | Writer |
| Production | Marie O'Donnnell | Production Manager |
