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夜中のトイレ、「食事中の塩分に関係」(BBC)

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Night-time loo trips 'linked to salt in diet'

夜中のトイレ、「食事中の塩分に関係」

 

People who wake at night with an urge to go to the loo may need to cut back on salt in their diets, doctors from Japan are suggesting.

cut back on ...「...を減らす」

The problem - called nocturia - which mainly affects the over-60s, leads to disrupted sleep and can significantly affect people's lives.

lead to 「~につながる」

In a study of more than 300 volunteers, researchers found that reduced salt intake led people to urinate less.

lead O to do「Oが~するよう導く」

Advice to follow a sensible diet could help improve symptoms, UK doctors said.

The researchers, from Nagasaki University, presented their findings at the European Society of Urology congress in London.

They followed patients who had a high salt intake and sleeping problems for three months, after giving them advice to cut back on salt in their diet.

On average, trips to the loo fell from more than twice a night to just one.

on average「平均して」

This happened at night as well as during the day, and their quality of life also improved.

as well as ...「...と同様」

 

 

Feeling the urge

Conversely, 98 people in the study ended up eating more salt than normal and found they went to the loo more often at night-time.

Study author Dr Matsuo Tomohiro said larger studies were needed to confirm the link but the results could offer help for older people.

"This work holds out the possibility that a simply dietary modification might significantly improve the quality of life for many people," he said.

hold out「提供する」

Prof Marcus Drake, a nocturia expert from the University of Bristol, said the amount of salt people ate was not generally considered to be a cause of nocturia.

Usually, doctors tended to focus on the volume of water patients drank before bedtime and on bladder and prostate problems (in men), he said.

"Here we have a useful study showing how we need to consider all influences to get the best chance of improving the symptom."


To pee or not to pee?

Peeing at nightImage copyrightSCIENCE PHOTO LIBRARY

The need to wake up at night to empty the bladder affects more than half of men and women over the age of 50.

It is particularly common in elderly people, many of whom get up at least twice a night.

at least「少なくとも」

When you start to need to make two or more trips to the bathroom at night, sleep is being disturbed - which can lead to stress, tiredness and irritability.


Is it just a side-effect of getting old?

Hormonal changes do happen as we age, making us produce more urine at night.

as ...「...につれて」

Men's prostate glands also often start growing with age.

An enlarged prostate can press on the tube that urine passes through before leaving the body, increasing the need to pass urine.

But this isn't the whole story.

Nocturia can be a sign of an underlying health problem, such as diabetes, heart problems or sleep-related conditions, such as sleep apnoea.


How much salt is too much?

Salt is in many kinds of foodImage copyrightGETTY IMAGES

Adults in the UK are recommended to eat no more than 6g of salt a day, equal to 2.4g of sodium.

no more than ...「...だけ」

Children should eat less - only 2g of salt for ages one to three, rising to 5g for seven to 10-year-olds.

After age 11, children can have up to 6g.


Which foods are high in salt?

Bread and breakfast cereals can contain more salt than you think.

Bacon, ham, cheese, crisps and pasta sauces are also high in salt.

in ...「...の点で、...において」→rich in ...

When buying food, look at the figure for salt per 100g on the packaging.

High salt content is more than 1.5g salt (0.6g sodium) per 100g. These foods may be colour-coded red.