Lizzy Yarnold, Britain's first gold medallist at the 2014 Sochi Games, said she was "so chuffed" to win the women's skeleton and that it was "lovely" her victory happened on Valentine's Day.
She told the BBC: "I don't think it's going to sink in for a long time...[on the fourth and last run] I was totally relaxed and enjoyed it, it was a bit of a messy run, I'm so thrilled I'm here."
"As an athlete you give up so much but on a day like today, it's so worth it," she added.
Yarnold added that she wanted to "show the world" she was capable of winning the gold medal.
More top news
Chancellor George Osborne has announced a £500m investment for the Faslane naval base in Scotland, home of the UK's nuclear deterrent.
Five-times major winner Maria Sharapova has pulled out of the US Open tennis championships due to a leg injury.
Police are hunting for a mother who has disappeared with her 10-week-old baby.