Contents -- Prologue: Molecules in Motion -- 1. Function Follows Form -- 2. An Experiment of One -- 3. The Gene for Gold Medals -- 4. Not Too Fast, Not Too Slow -- 5. Lactic Acid Acquitted -- 6. Catch an Edge -- 7. Your Brain on Exercise -- 8. Live High -- 9. Run Like a Woman -- 10. Drinking Games -- 11. More Gain, Less Pain -- 12. Chasing the Holy Grail -- Epilogue: The Next Race -- Appendix: Visualizing Protein Structures -- Notes -- Glossary -- Acknowledgments -- Index.