Sleeping pills prescribed to millions of people every year do not work in the long term, a study has found.
Scientists found no difference in sleep quality or duration between those who took the medication for one to two years.
In the Western world, insomnia is thought to affect between 10 and 30 per cent of adults at any one time, according to the Economic and Social Research Council.
The group has also calculated that one in 10 British adults regularly take some kind of sleeping tablet, with an accompanying risk of addiction.
For the new study, published in BMJ Open, a team at Brigham and Women’s Hospital in Boston compared 238 women who had started using medication to tackle insomnia with 447 matched women who were not on sleeping drugs. The average age was 49.5.
prescribe：動詞，（醫生）開（藥），為…開（藥）。例句：The drug is often prescribed for ulcers.（這種藥通常是開來治療潰瘍的。）
insomnia：醫學名詞，失眠症。例句：I suffer from insomnia and have to rely on sleeping pills.（我患有失眠，要吃安眠藥。）
tackle：動詞，對付，處理；與…交涉。例句：There are many ways of tackling this problem.（處理這個問題有許多辦法。）