Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/how-your-digestive-system-works-emma-bryce Across the planet, humans eat on average...
========== Across the whole planet, humans eat on average between
one and 2.7 kilograms of food a day. That's over 365 kilograms
a year per person, and more than 28,800 kilograms
over the course of a lifetime. And every last scrap makes its way
through the digestive system. Comprised of ten organs
covering nine meters, and containing
over 20 specialized cell types, this is one of the most diverse
and complicated systems in the human body. Its parts continuously work in unison
to fulfill a singular task: transforming the raw materials
of your food into the nutrients and energy
that keep you alive. Spanning the entire length of your torso, the digestive system
has four main components. First, there's the gastrointestinal tract, a twisting channel
that tran...