They have little things at the ends that are almost like sensors that detect and analyze what you're supposed to feel and they send a signal to you brain to tell you how to react.
Sprouts, along with onions, beans and dairy products, are hard to digest in the stomach and small intestine because our bodies can't produce the enzymes needed to break down some of the chemical components they contain.
People age because as our cells regenerate a small bit of the script is made useless after each regeneration cycle, like burning gas in our car, so after some time i.e. a lifetime the code is less and so people weaken and get older
Extra sugar that a plant doesn't need is stored as starch. Using a tree as an example, it uses photosynthesis to create sugar and the rest that remains unused is stored in the trunk or roots as starch, saved for later.
