Spanish police said Monday that at least 39 people died in the a high-speed train collision Sunday in southern Spain and rescue efforts were continuing.

Are sleep trackers on your phone helping you get a full night's rest? NPR's Life Kit investigates.

Until last year, the number of children orphaned because a parent died from AIDS, was plummeting. That's thanks to America's 20 year effort to get lifesaving HIV meds to millions in need. But last years upheaval in foreign aid funding is raising concern that more children will be at risk of losing a parent to the deadly virus.