从我们的第一声啼哭到最后一次呼吸，我们的身体正经历着不断的微妙变化。我们的每一个本能动作以及从外界受到的每一次刺激，都通过我们的皮肤、骨骼、器官、肌肉以及细胞得以体现。我们一生中平均呼吸7亿次，成年人的骨架每7-10年更换一次，身体每分钟会死掉3万个皮肤细胞，我们吃下的食物从口至肛门要经历9米的旅程。这些看似稀松平常的细微瞬间，其实都是我们赖以生存的生物系统奇妙的变化过程。 　　现在，国家地理频道（NGC）将采用显微摄影技术、先进的医学技术和心脏断层（CT）显像技术，带领你一起进入人体的肌肤深处，与你一同见证我们从幼年、青年、成年到老年过程中，人体是如何运作、成长和成熟的。From our first cry to our last breath, our bodies undergo a continuous second-by-second transformation. Every move we make and every outside stimulus triggers a reaction through the skin, bones, organs, muscles and cells. We breathe, on average, 700 million breaths in a lifetime; an adult skeleton is replaced every seven to 10 years; we shed as many as 30,000 dead skin cells every minute; and the food we eat travels 30 feet (9 meters) on its journey through our bodies. Now, the National Geographic Channel (NGC) takes you beneath the skin to reveal how our bodies evolve from birth to old age, and the amazing biological systems we need to thrive. From the producers of NGC's critically acclaimed In the Womb series, Inside the Living Body traces one "everywoman's story", using milestones to examine the everyday workings of a living, functioning body in ways not seen on television until now. Cutting-edge miniature endoscopic HD cameras delve deep inside the mouth, throat, heart, lungs, digestive tract, brain and reproductive organs to shed new light on how and why our bodies do what they do. Stunning photography in this two-hour special reveals universal moments in human development at the most minute level, providing insight into both our own individual metamorphosis and our shared human experiences.