Kim Kardashian, the reality television star and entrepreneur, said that she has been diagnosed with a brain aneurysm.

Kardashian, 45, disclosed the diagnosis during a teaser for the seventh season of her reality show, “The Kardashians,” which premiered Thursday on Hulu.

“There’s, like, a little aneurysm,” Kardashian can be heard saying in the clip, which appears in a preview of the season at the beginning of its first episode.

Kardashian’s sister Kourtney Kardashian Barker appears to respond to the news, saying, “Whoa.”

Kardashian can be heard suggesting the aneurysm stems from stress. Footage in the teaser also appears to show Kardashian undergoing a brain scan.

Brain aneurysms are relatively common: About 1 in every 50 people has an unruptured brain aneurysm. Many people who have th

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