Sleeping pills largely work not just because of their ingredients but also due to the placebo effect that they have on their users, a new study by a team of American researchers reveals.
Researchers at University of Lincoln, Harvard Medical School and University of Connecticut conducted a joint study analyzing more than a dozen clinical trials and found that sleeping pills, also known as Z-drugs, worked when placebo effect was taken into consideration.
Advertisement"Our analysis showed that Z-drugs did reduce the length of time taken for subjects to fall asleep. But around half of the effect of the drug was a placebo response. There was not enough evidence from the trials to show other benefits that might be important to people with sleep problems, such as sleep quality or daytime functioning", lead researcher Niroshan Siriwardena said.
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