Their conclusions were based on previous studies that found many normal physical test results, a lack of a discernible cause, and a higher prevalence of the illness in females. Consequently, the authors recommended that the disease should be renamed "myalgia nervosa". This perspective was rejected in a series of case studies by Dr. Melvin Ramsay and other staff of the Royal Free Hospital, the center of a significant outbreak. The  psychological hypothesis posed by McEvedy and Beard created great controversy, and convinced a generation of health professionals in the UK that this could be a plausible explanation for the condition, resulting in neglect by many medical specialties. The specialty that did take a major interest in the illness was psychiatry.Because of the controversy, sociologists hypothesized that stresses of modern living might be a cause of the illness, while some in the media used the term "Yuppie flu" and called it a disease of the middle class. People with disabilities from CFS were often not believed and were accused of being malingerers. The November 1990 issue of Newsweek ran a cover story on CFS, which although supportive of an organic cause of the illness, also featured the term yuppie flu, reflecting the stereotype that CFS mainly affected yuppies. The implication was that CFS is a form of burnout. The term yuppie flu is considered offensive by both patients and clinicians.In 2009, the journal Science published a study that identified the XMRV retrovirus in a population of people with CFS.
Apprehension may refer to:

Apprehension (understanding), awareness or understanding of something by the mind
Arrest by law-enforcement officers
Fear
Anxiety
Apprehension (film), a 1982 film by Lothar Warneke