Sarah Kliff

Offering a rare glimpse inside the hidden world of rejected insurance claims, new data shows a steady uptick among major private insurers.

Millions of parents have paid to bank blood from their infants’ umbilical cords. But storage companies have misled them about the cells’ promise.

Responding to fears of a “honeybee collapse,” 30 states have passed laws to protect the pollinators. But when they invaded my house, I learned that…

A nonprofit group called R.I.P. Medical Debt has relieved Americans of $11 billion in hospital bills. But that did not improve their mental health or…

The decision means I.V.F. patients who want to transfer frozen embryos to another state may not be able to do so.

A ruling by a federal judge this week could set up yet another Supreme Court challenge to the Obamacare health law.