Axel the border collie saves life of teen boy having stroke in Texas

Gabriel Silva, 17, was saved by his family's dog, who alerted his parents that he was having a stroke in the early morning

A quick-thinking dog saved the life of a teenage boy having a potentially deadly medical emergency in Texas.

Gabriel Silva, 17, was saved by his family's border collie, Axel, who alerted the teen's parents that he was having a stroke, the Today Show first reported.