U.S.

President Obama plans to travel to Cuba next month, capping a historic diplomatic thaw after decades of official isolation.

Grieving the loss of a loved one to drug overdose can be difficult when it is mixed with guilt and remorse. But support is scarce for those who are left behind.

A report from doctors in Argentina raises the possibility that a mosquito pesticide could be responsible for an increase in microcephaly in Brazil. But many top scientists strongly disagree.

A Los Angeles hospital paid the equivalent of $17,000 in Bitcoins to hackers who took over medical records and shut down the hospital's computer servers for days. The incident is raising questions about patient safety and privacy in the digital age.