According to the ExpressBrad Kearns is a 27-year-old father of two from Australia who has just learnt what women have known since the birth of birthing: being a mom is hard. (So is being a dad who's the primary caregiver, please don't yell at us in the comments.) Kearns—who plans to chronicle more of his journey on the Facebook page DaDMuM—was schooled on the responsibilities of motherhood after his wife, Sarah, suddenly fell ill. Kearns had to leave work to tend to his two kids, Knox (2) and Finn (six weeks). Quite quickly, Kearns figured out that kids take a lot out of you.