题目内容：

There are many reasons why people can’t get a good night’s sleep and as with any other health conditions, things are not likely to improve until you find a way to break the cycle.

These are some of the main factors that need to be addressed.

Worry and stress

We have all been kept awake by many factors that cause worry and stress in our lives. Money problems, relationship issues and work stresses can have you sitting up all night. A useful habit is to download your thoughts at the end of the day. Keep a pen and paper next to your bed and before you go to sleep, write down your thought and worries, create a to-do list for the following day or set down solutions and ideas that relate to work.

Diet and eating patterns

What and when you eat can have a major impact on your ability to sleep. Eating too late or indulging in a rich or spicy meal can keep you awake. These foods take a long while to digest and the after effects of indigestion and heartburn are not going to set you up well for a good quality sleep.

A research suggests that both calcium and magnesium may be linked to poor sleep. Even low intakes of magnesium found in green vegetables, beans, nuts and seeds have been shown to make it harder to stay asleep. Calcium is found in dairy foods, soybeans and green vegetables and low levels have also been shown to make it more difficult to nod off.

Alcohol and caffeine

Tea, coffee and energy drinks contain caffeine that helps to stimulate the nervous system and make you more alert, which is great if you need a pick-me-up. Dosing up on caffeine during the day can affect your ability to sleep later on in the evening. Try limiting your intake of caffeine to the morning and switch to decaffeinated options such as herbal teas. Alcohol is a double-edged sword when it comes to sleep. While a little may help to induce slumber, even in small amounts it can cause fragmented sleep patterns.

Bedroom environment

“Your bedroom should be dark once the lights are switched off because melatonin, a sleep-regulating hormone, is very light-sensitive. Maintaining the right temperature can also help with sleep as a room that is too hot may prevent your core temperature from going down, which is essential for switching on the sleep mechanism within the body.

1.Which of the following is TRUE according to the passage?

A. Melatonin is a chemical in our bodies that disturbs our sleep.

B. The lower the temperature is, the easier you will find it to sleep.

C. Drinking a little coffee in the morning may not affect your sleep at night.

D. You should eat more vegetables and wholegrains for supper to get a better sleep.

2.The passage can be found in the column of ________ in a newspaper.

A. Science    B. Health    C. Fashion    D. Education