新指南旨在帮助年满18岁的年轻人跨过健康与教育这道坎。此次变更重在强调对情感成熟、荷尔蒙发展、尤其是大脑活动的理解。

"Neuroscience has made these massive advances where we now don't think that things just stop at a certain age, that actually there's evidence of brain development well into early twenties and that actually the time at which things stop is much later than we first thought," says Antrobus.“

“神经科学已经取得重大进步。现在看来，有些问题并不是到了某个年龄就会自动停止的；事实表明，在二十出头的年纪，大脑还处于成长状态，定型时期远比人们原先认为的晚。”安特罗伯斯说。

There are three stages of adolescence - early adolescence from 12-14 years, middle adolescence from 15-17 years and late adolescence from 18 years and over.

青春期有三个阶段：12-14岁为早期，15-17岁为中期，18岁以上为后期。

Neuroscience has shown that a young person's cognitive development continues into this later stage and that their emotional maturity, self-image and judgement will be affected until the prefrontal cortex of the brain has fully developed.

神经科学表明，年轻人的认知发展会一直持续到后期阶段，而在大脑前额皮层完全发育前，他们的情感成熟、自我形象和判断都会受到影响。

Alongside brain development, hormonal activity is also continuing well into the early twenties says Antrobus.

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