Vayechi 5774

Why do we say "bless you" when someone sneezes? It is because of Yaakov that we do so. The Chizkuni explains that Yaakov asked of Hashem to give him signs when he was nearing death. One sign was the ability to sneeze without dying. Back then when a person would sneeze, his/her soul would leave the body. People were amazed when they saw Yaakov. Because of this, the Pirkei D'Rabbi Eliezer says to say "lechaim" when one sneezes. This is why we say gezundheit!