Diana Nyad will not make another attempt to swim from Cuba to Florida

In an emotional press conference today, marathon swimmer Diana Nyad admitted that she will not try to swim from Cuba to Florida again, after failing in her latest attempt on Sunday to become the first person to make the 103-nautical mile crossing without a shark cage.

The 62-year-old swimmer was stung numerous times by Portuguese man o'war jellyfish which, “just took the life force out of me,” she said, the The Los Angeles Times reports.

According to CNN, marks were still visible during today’s press conference, where Hyad was also wheezing as she spoke. She admitted that it was hard to let the dream go and that she and her team were “naive” about the dangers of the jellyfish. They were so focused on the dangers of sharks, but were unable to combat the dangers of jellyfish.

Nyad first attempted the challenge in 1978, but after 48 hours in the water, she had to call it off due to stormy weather. Last month, an asthma attack forced her to call off the swim after 60 miles. This time, she made it through 82 miles, which made it even harder for her to give it up.