１、围更年期的妇女易受潮热和盗汗等症状影响。

２、妊娠期女性体内的激素水平变化。

３、妊娠期女性生理亦易发生相应的变化，其结果是排尿次数增多和易出现不适。

４、女性更易患抑郁和焦虑。

５、女性不安腿综合征（restless leg syndrome）多见。

Why Some Women Can't Sleep

　　Insomnia more common in women than in men

 　　(HealthDay News) -- Insomnia is more common in women than in men, the Womenshealth.gov website says of the common sleep disorder.　According to the site, here's what may trigger more sleepless nights among women:

１、Hot flashes, night sweats and other symptoms of perimenopause.

２、Hormonal changes during pregnancy.

３、Physical changes during pregnancy, including discomfort and increased frequency of urination.

４、Depression and anxiety, which tend to be more common in women.

５、Physical conditions that tend to affect women, such as fibromyalgia and restless leg syndrome.