April 2, 2015 9:40 am WATCH: New Heat-Sensitive Socks for Diabetics Remember mood rings? Researchers have developed heat-sensitive socks that change color to monitor circulation in people with diabetes. Local 0:44 At least 5 shot along Connecticut Avenue in Dupont Circle 1:36 O.J. Simpson's cause of death revealed 2:36 Super dad makes Mario-themed obstacle course for son's birthday 2:03 Does Shakira still believe in love following Gerard Piqué split? 1:59 Ellen DeGeneres jokes about being ‘kicked out of show business'