behavioural problems

基本解释

Animal studies have linked the combination of stress and lack of sleep to behavioural problems in teenage years.
动物研究曾将压力大和睡眠不足并存的状况与青少年时期的行为问题联系在一起。
The study cannot tell if issues as a baby cause behavioural problems later in life: they could be an early symptom of those later problems.
这项研究无法判断是否是婴儿时期的问题导致了日后的行为问题：它们也可能是日后其他一些问题的早期症状。
The foetal development of boys may also be more sensitive to this kind of chemical assault, the authors speculate, which could explain why boys are more likely to have behavioural problems than girls.
该报告的作者推测，男孩在胎儿发育阶段可能对此类化学袭击反应更为敏感，这就可以解释为什么男孩比女孩更有可能出现行为问题。