Let's break them down. Coffee is made of aldehyde which gives off the aroma. The other part of coffee is of course, caffeine. The problems with caffeine are, first of all, that it is a stimulant that deprives the adrenal gland. These strange signals given to your system can lead to addiction to caffeine.
Coffee also is a laxative.
Now for our ever popular cola. Starting in our youth, we begin to consume caffeine in the form of colas. This is so unfortunate because before they are able to explore and experience their own natural energy and stamina, they're hooked and seated on the energy roller coaster. Add that to a depleted white flour, preservative and sugar diet. Phosphoric acid is an ingredient in soft drinks that support their bubblieness.