Barbara S., her husband, and her sonÂ participated in a studyÂ investigating the genetics of multiple sclerosisÂ because her son is affectedÂ byÂ the disease. While researchers compiled genetic information from many participants, Barbara and her family assumed their normal lives. Although she expected news about her sonâ€™s multiple sclerosis, and perhaps even an answer to what side of his parentage the disease came from, Barbara was surprised when she received a phone call that some informationÂ had been uncovered that affectedÂ herÂ specifically. Barbara went in toÂ meet withÂ the researchers and learned that, while doing their studies on MS, the doctors discovered an incidental connection between Barbaraâ€™s genes and a greatly increased chance of Alzheimerâ€™s disease after 65. Barbara is about to celebrate her 55thÂ birthday, and isÂ devastatedÂ by this news. There is not much medical action Barbara can take, and though she is a healthy and active adult, the news worries Barbara to no end.