Kim Kardashian says parenting has been ‘the most challenging thing’

Kim Kardashian says parenting is ‘the most challenging thing’ (Doug Peters/PA)

Kim Kardashian says being a parent is “the most challenging thing” and has had nights when she cried herself to sleep.

The US reality star, 42, said becoming a mother had been “the thing that has taught me the most about myself” but that there was “nothing that can prepare you” for the experience.