A short period of psychological stress in infancy can lead to impaired learning and memory and a decline in cognitive abilities in middle-age, according to research conducted in rats.

婴儿期的短时的心理压力可能导致中年期的学习和记忆能力受损，思维能力下降。

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The researchers say it might be possible to use the hormone to develop new drugs to combat impaired learning and memory, but warn that weight gain could be a side effect.

BBC: NEWS | Health | Hunger pangs 'may trigger memory'

Babies of women exposed to the chemicals may suffer impaired memory and learning ability.

CNN: THE GREAT DIOXIN SCARE