Feed the Nerves Upon pure, rich blood and you need not fear nervous prostration. Nerves are weak, when they are improperly and insufficiently nourished. Pure Mood is their proper food, and pure blood comes by taking Hood's Sarsaparilla, which is thus the greatest and best nerve tonic. It also builds up the whole system. Hood's Pills are the favorite family cathartic, easy to take, easy to opérate.