393398_10151183850003489_1379687441_nHmmm, je sais pas pourquoi il faut faire le ga ga tout le temps! It’s really a wasting time to take our time to poop everytime. But it seems like we have to do it almost everyday. Why do we have to?

I already know that what goes in, must come out. I even know that  a lot of what we eat has to be converted to energy then builds materials for our body. But why we still have to poop? Why doesn’t our body use all those food we eat? Why can’t we just convert everything we put into our bodies into useful materials? Can we eat a food that our body needs only?