Hypochondria among Americans may be jeopardising the development of new medicines, as a study reveals that the placebo effect is becoming worryingly powerful in the US.
Huge American drugs trials are increasingly foundering on the unexplained scientific phenomenon, which does not appear to be happening anywhere else in the world.
The findings leave US drugs companies with a serious dilemma. As the difference between receiving a new painkiller and simply thinking that you are receiving a new painkiller evaporates, it is becoming ever harder to tell whether the drug works or not.
This may explain why more than nine out of ten new pain-relief drugs fail at the testing stage.
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