Oxytocin, a "security hormone," is secreted in large amounts in a baby's brain through physical touch such as back rubs, hand holding, gentle cheek touching, and massage.
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6/21/2026
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6/21/2026
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1歳までがゴールデンタイム!赤ちゃんの脳がグングン育つ神習慣[絶対役立つ子育て雑学]
子育ての悩み解決ちゃんねる
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