[单选题]

Sleeplessness

Insomnia orsleeplessness is a common complaint of women as they enter into menopause.In-somnia means having trouble falling asleep or staying asleep or the feelingthat

your sleep was notadequate for you .For women who are having night sweats,their sleep is brokenby frequent a-wakening and therefore not refreshing. Generally once the

night sweats arecontrolled a normal sleep pattern returns .If it doesn't it may be,or havebecome chronic insomnia. How do you know?

if you suffer frominsomnia every night or most nights for a period of one month then you havechronic insomnia. If you're not having night sweats then it's time to look for

other causes ofsleep-lessness. Depression and anxiety disorders are the most common causes ofchronic insomnia. If you feel depressed you need to be checked by a

qualified healthcare provider. Movement disor- ders such as restless leg syndrome are second onthe list of insomnia for them,there are new med-icines that may help. Other

common causes areshift working,and pain.

In up to 30%of peoplewith chronic insomnia no cause can be identified.Medical treatment of thesepeople has generally been with sleeping pills.It is estimated that 25% of

the adult popu-lation in Americatook some type of medicines for sleep last year. It is generally agreed thatsleep-ing pills should only be in the lowest dose and for the

shortest possibletime.

Sleep hygiene isdirected at changing bad sleep habits.The recommendations arE.-Go to bed onlywhen sleepy.-Do not waitup to a specified time.-Avoid caffeine and

alcohol in theevening,etc.How many possiblecauses of sleeplessness are mentioned in the second paragraph?

A.Numerous.

B. Seven.

C. Six.

D. Five.

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