Infant Health and Development

Infantile colic — episodes of inconsolable crying in otherwise healthy newborns — affects roughly one in five infants and places measurable strain on parents, feeding patterns, and early caregiver bonds. Researchers are working to understand whether the underlying causes are primarily gastrointestinal, such as gut microbiome imbalances or dysmotility, or whether they reflect broader regulatory difficulties in an immature nervous system, with probiotic interventions like *Lactobacillus reuteri* showing promise but inconsistent results across populations. Automated cry analysis is opening new ways to objectively characterize distress signals that were previously assessed only through parental report, raising the question of whether cry acoustics can reliably distinguish colic from other causes of infant distress. A central unresolved challenge is disentangling how much of the observed harm — including elevated parenting stress and postpartum depression — stems from the crying itself versus the cascade of sleep disruption and uncertainty it creates for families.

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48,289

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393,993

Keywords

Infant CryingColicProbioticsMaternal ResponseGastrointestinal DisordersRegulatory Problems