Los primeros 20 minutos: Sorprendentes hallazgos científicos revelan cómo ejercitarnos al máximo, entrenar mejor y vivir más / The First 20 Minutes

"Here, Reynolds consults experts in a range of fields to share paradigm-shifting findings that were previously only available in academic and medical journals, including: 20 minutes of cardio is all you need (and sometimes six minutes is enough). Stretching before a workout is counterproductive. Chocolate milk is better than Gatorade for recovery. Whether you're running ultramarathons or just want to climb the stairs without losing your breath, The First 20 Minutes will show you how to be healthy today and perform better tomorrow"--