Your milk might be telling your baby what time it is
Jannie SperlingPublished on: 18/08/2026
Human milk isn't the same at 8am and 8pm. New research suggests it may be telling your baby what time it is — and what that means if you pump, freeze or feed expressed milk.
chrononutritioncircadian rhythmexpressed breast milkpumping and storing breast milkinfant sleeppreterm infantshuman milk compositionbreastfeeding support