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Researchers suggest baby gut microbiome influences early brain development

Scientists propose that the infant gut microbiome plays a role in brain development during the first two years of life.

Opinion: We think a baby’s gut microbiome could be key to lifelong brain health
File photo Opinion: We think a baby’s gut microbiome could be key to lifelong brain health Photo: STAT

Critical window for brain growth

Researchers have identified the period between conception and a baby's second birthday as a critical time for development. During these earliest months, the brain forms millions of new neural connections every second. Medicine often frames conditions like autism or Alzheimer's as primarily genetic or social in origin.

Unexpected biological systems involved

Evidence suggests the developing brain takes instructions from sources beyond genetics and nutrition. The gut microbiome may act as one of the biological systems translating experience into lasting changes. Understanding these mechanisms is necessary to address conditions affecting the brain across the lifespan.

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