On those occasions when your priest uses the first Eucharistic Prayer, there is a rather long list of saints. Among the names are today's saints, Cosmos and Damian, celebrated together because they were twins.
They were also physicians. And during their lifetime they were famous not only for some miraculous cures, but more for their refusal to accept payment and caring for those who would otherwise have no access to a physician.
During the famous persecution of the emperor Diocletian, they were among those who were unmercifully tortured and eventually beheaded,around the year 287. By the next century churches were already being built in their honor.
Being twins, their intercession has often been invoked by women having difficulty conceiving, and in Brazil children will today be given bags of candy with the image of the twins.
Saints Cosmos and Damian, pray for us.