God Bless You

Anybody ever think about why we say "God Bless You" after somebody sneezes? I don't know why, but for some reason I think about these things and am interested to know the reason behind it. So I looked up a few things on the internet to try to figure out why it is that it has become a common response to a sneeze. The most common answer for this is that during the bubonic plague, sneezing was thought to be the first sign of the plague. Therefore, when people would sneeze, others would ask God to bless them in order to halt the onset of the disease. So people would see/hear somebody sneeze and they would ask God to heal them, basically they were praying for their friends, family, and strangers! This old source of a quick prayer/blessing has become an English custom and has lost its value/true meaning. Do we really know that we are asking God to bless a person that sneezes? I didn't think about it that way, I just did it because I thought it was the polite thing to do. While nobody really knows how "God Bless You" became a common saying to a sneeze, it can be taken as a person asking God to bless and heal another brother or sister, which is awesome. Are you praying God's blessings upon others?