United Kingdom, Nov. 20 -- Kourtney Kardashian wanted Kim Kardashian to delay her law exams after suffering a brain aneurysm.

The 46-year-old star was "worried" for her 45-year-old sister after her doctor warned that her brain aneurysm could "rupture" due to stress as she juggled her studies, filming for new legal drama All's Fair, and her family life.

In the latest episode of The Kardashians, Kim told her sibling: "I called Keith Black, the brain surgeon, and I sent him a picture of it. He was like, 'I want you to come in for all this imaging'.

"I asked, 'Can I wait? What makes it rupture?' They're like, 'Just stress.'"

Kim admitted her stress level had reached "the point of hives", as she tried to do her best for kids North, 12, Sai...