The number of Swedish workers on sick leave, after declining for years, began to rise abruptly in late 1997, according to the study, doubling during the next five years. Sales of antidepressant drugs doubles during the same period. The number of deaths from Alzheimer's disease rose sharply in 1999 and had nearly doubled by 2001. The authors of the study—Olle Johansson, a neuroscientist, and Örjan Hallberg, a former environmental manager for Ericsson, the Swedish telecommunications company—"found that for all individual counties in Sweden there was a similar precise time" when health worsened. It occured, they said, almost simultaneously with the rollout of the new digital service.
it also occurred almost simultaneously with the baby boom population bulge starting to turn 50.