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Kim Kardashian may be the older sister, but Khloe Kardashian has her beat in a new ranking that the latter said makes her sister "livid."
On the season five finale of The Kardashians that aired Thursday (July 25), genomics doctor Dr. Matthew Dawson, of the company TruDiagnostic that ran the test, told Khloe that she ranks among the top ten slowest agers in the world, according to a blood test determining the body's biological age compared to a person's calendar age, per E! News.
"This is exciting news for you," Dawson said. "There's a global competition on self-rejuvenation. And right now, you would be No. 7 in the world."
The 40-year-old Good American co-founder was told that her biological age is 28 on the epigenetic close, while her 43-year-old sister has a — still very admirable — biological age of 34. Khloe is seemingly enjoying coming out on top on the ranking after years of being criticized for her weight.
"Kim is livid," Khloe said in a confessional. "The world needs to know that me — the fat one — is now better than the best one ... The fat, funny sister is 12 years younger than her chronological age."
The SKIMS founder, who said she was "pissed" because she "always [wants] to be the highest achiever," was told she ages 18% slower than most people in their 40s. She joked that while she has a biological age 9 years older than her actual age, she wants to "round it off" and say she's 10 years young.
"I feel it," she said. "I act like it. I look like it."