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Prenatal undernutrition and cognitive function in late adulthood.

Susanne R de Rooij1, Hans Wouters, Julie E Yonker

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Area of Science:

  • Neuroscience
  • Public Health
  • Human Development

Background:

  • World War II led to a severe 5-month famine in the Netherlands, with daily rations as low as 400 calories.
  • Previous studies in 1972 suggested no cognitive impact from prenatal famine exposure in young adults.
  • Emerging evidence indicates potential long-term effects of early-life nutritional stress on cognitive aging.

Purpose of the Study:

  • To investigate the long-term effects of prenatal famine exposure on cognitive function in adulthood.
  • To determine if early-gestation famine exposure impacts specific cognitive abilities, such as selective attention.
  • To explore the potential link between prenatal undernutrition and accelerated cognitive aging.

Main Methods:

  • The study assessed cognitive performance in individuals exposed to famine during early gestation.
  • Selective attention tasks were administered to participants aged 56 to 59 years.
  • Cognitive performance was compared between famine-exposed and unexposed cohorts.

Main Results:

  • Adults exposed to famine during early gestation performed significantly worse on a selective attention task.
  • This cognitive decline was observed in both men and women.
  • The findings suggest a lasting impact of prenatal undernutrition on cognitive abilities.

Conclusions:

  • Prenatal undernutrition during early gestation is associated with impaired cognitive function in later life.
  • Worse performance on selective attention tasks may indicate an accelerated cognitive aging process.
  • This study highlights the critical importance of nutritional status during pregnancy for long-term cognitive health.