# Blog

Letters and field notes from Dr. Tennyson on longevity, performance, training, and what the evidence actually says — the reading room of TMD Health.

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Occasional letters from Dr. Tennyson — longevity, training, and the evidence behind both.

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## Latest posts

- [Body Composition](/blog/body-composition)
- [Cardiometabolic Health](/blog/cardiometabolic-health)
- [Cardiorespiratory Fitness](/blog/cardiorespiratory-fitness)
