Beer is definitely not a good choice for Jamie in this situation. Severe dehydration may occur if Jamie will drink beer after playing football under a hot summer afternoon. Knowing that Jamie is releasing body fluid in the form of sweat while playing, drinking beer would exacerbate the dehydration. First of all, beer is a diuretic. You may think that you are adding fluids to your body, but you are actually doing the opposite. Drinking beer will trigger frequent urination.