Attention Deficit Hyperactivity disorder, ADHD, is one of the most common mental disorders that develop in children.

注意缺陷多动症是儿童在成长中最常见的心理障碍之一。

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Children with attention deficit hyperactivity disorder exhibit a range of symptoms.

患有多动症的儿童会表现出一系列的症状。

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Children with the severest for m, called "attention deficit hyperactivity disorder", exhibit such disruptive behaviour that it impairs their learning and function at home and at school.

多动症最严重的一种形式叫做“注意缺陷多动障碍”，患这类多动症的孩子，其行为的破坏性甚至严重到影响他们的正常生活和学习。

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What undoubtedly benefits a small number of children with specific problems, such as hyperactivity, can all too easily become an instant, cheap cure-all for youngsters who may be misbehaving because they are bored, miserable, badly nourished or for any other reason.

ECONOMIST: Education: Behave, or else | The

The advice also stresses the need to make sure that children take medicine for conditions such as attention deficit hyperactivity disorder or for behavioural problems on the trip.

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Many are concerned that Ritalin and similar drugs, which aid concentration in those with Attention Deficit Hyperactivity Disorder, are chemical straightjackets that prevent children from taking full responsibility for themselves.

FORBES: Ritalin 'Doesn't Turn ADHD Children Into Robots'