Can human blood be drunk? I don't hate that smell, and I'm not greedy. . .

Sure! Aside from ethics, human blood is as nutritious as pig blood. But if you want to drink raw food and prevent diseases, you should generally cook it. There are many people who drink human blood in history, and superstitious people burn steamed bread with human blood to eat and cure diseases. A child trapped in the earthquake bit his cheek and sucked blood in Wenchuan, saving his life. Feel free to drink if you want. Stop being infected!