When Olivia DeLong’s 2-month-old wouldn’t stop crying – like, four straight hours of full-body sobs – she did what any first-time parent would do: panic a little, and head to urgent care with backup ...

Struggling to soothe a crying baby can be debilitating, but new research suggests it might be more out of parents' control than they think. A new Swedish twin study has found that how much an infant ...