CNBC's Becky Quick recently opened up about her 9-year-old daughter Kaylie's private battle with a rare genetic disorder. In an interview with People, published on Thursday, January 8, Quick, 53, revealed that Kaylie suffers from SYNGAP1. According to the Child Neurology Foundation, SYNGAP1 is a genetic disorder that leads to seizures and developmental problems. The longtime coanchor of CNBC's Squawk Box said that it was "probably around 8 months" when she realized Kaylie "wasn't hitting her milestones." "Sometimes her eyes would cross.