five with previously diagnosed mental health conditions, and five with no such diagnosis. they were observed by three experts in mental health diagnoses and their challenge was to identify the five with mental health problems solely from their behavior, without speaking to the subjects or learning anything of their histories. the experts correctly diagnosed two of the ten patients, misdiagnosed one patient, and incorrectly identified two healthy patients as having mental health problems. unlike the other experiments listed here, however, the aim of this journalistic exercise was not to criticize the diagnostic process, but to minimize the stigmatization of the mentally ill. it aimed to illustrate that people with a previous diagnosis of a mental illness could live normal lives with their health problems not obvious to observers from their behavior.