Anxiety and the Chills - The Cause and Connection. The idea is that the anxiety of the horror movie provides a level of fear that sends chills down your spine. Anxiety has often had a connection to chills, even though the exact relationship between anxiety and these chills often seems so unclear.
No one knows for sure. The popular theory is that the Night's King is indeed a Stark. That he was the Lord Commander of the Night's Watch who lived during the Age of Heroes, 8000 years before the time of the series. It's believed he fell in love with a female White Walker, fell in love with her and that they mated.
Arya Stark is back in Westeros in the season six finale of Game of Thrones, which means she has returned to full revenge mode. Now that she's picked up a few tricks from the time she spent at the House of Black and White, her first order of business is avenging the deaths of her mother and brother during the Red Wedding at the hands of Walder Frey.