Okay, well to explain the circrumscision from the Judeo-Christian viewpoint (which, by itself, would not make any contributions to science):
Suppesedly at eight days old they are circumsed, showing the young child's (and parent's, since they dont have a choice) devotion to God. Christians are taught (doesnt always happen in practice) to stay absident until marriage, which in turn would decreae sexual contact until marriage, thus having less sexually transmitted diseases.
But that may not be the scientific solution for this, just tell me if this is flawed.