Kim Kardashian is revealing a major health scare on season 7 of The Kardashians. In a trailer that played at the beginning of the Thursday, October 23, episode, Kim, 45, lying in an MRI machine. She's later seen talking to sister Kourtney Kardashian, explaining that the scan found "a little aneurysm." Kourtney, 46, was taken aback and put her hand over her heart, saying, "Whoa." Kim added that the doctors suspect the aneurysm - which is marked by swelling in a blood vessel in your brain - is likely related to "stress.