Olivia is 34 years old. She is from Australia. One day, her husband told her to try to do pull-ups (引体向上) for 24 hours. She thought it was too hard. But she still tried to train. She got hurt during her training and had to stop. She felt sad. After getting better, she tried again. On March 29-30, Olivia began her 24-hour challenge (挑战). She did 7,079 pull-ups! That’s a new record!