24-year-old Kylie Cox is a nurse who got married in Cornwall, England over the weekend. (Cornwall is 250 miles west of London.)
And at her reception, she was dancing with a 28-year-old male friend of hers, when he told her he was feeling light-headed. (The guy's name wasn't given.)
Kylie went to get him a chair to sit down . . . but before she got back, he COLLAPSED due to an apparent heart attack.
Kylie was in her wedding dress, but that didn't stop her from performing CPR on the guy. A bridesmaid . . . who's also a nurse . . . and one of Kylie's uncles also helped out, and they SAVED his LIFE.
The guy is expected to make a full recovery, and Kylie is planning another reception since the first one got cut short.