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危险：n.

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They have to do a lot of these things at the same time. They never find the time to stop for breath. This is called “__________ (多任务处理) ” and it can be a danger to your health.

Lots of people go out to work, look after their children, manage a home, do leisure activities and __________ ( 社交) .

If you are tired, irritable and often have stomachaches or headaches, you might have a 21st century stress __________ ( 失调) called adrenal fatigue.

Doctors warn that watching television for more than two hours per day when you are young can lead to learning difficulties and a loss of __________ (集中精力) .