The Human Body: Secrets of Your Life Revealed (2017)

S1E1 Grow

Throughout your life, you experience a remarkable transformation—one that is unparalleled in the animal kingdom. In this episode, Chris and Xand van Tulleken delve into the latest insights regarding human development. They investigate why our childhood lasts longer than that of any other species and examine the complex communities of microbes, known as our microbiome, that we nurture over the years. The brothers also reveal the enigmatic catalyst that initiates our shift from childhood to adulthood, and for the first time, they showcase the extraordinary burst of life that occurs when sperm meets egg.