Doctor analyzes concerns smartphones are ruining young adults' brains Fox News host Will Cain and Dr. Lee Spencer unpack thought patterns in young adults on 'The Will Cain Show.' NEW You can now listen to Fox News articles! Nail-biting, procrastination and avoidance are often framed as bad habits we can't control, but a new psychology book argues that they’re more like survival strategies that may have once protected us. In "Controlled Explosions in Mental Health," clinical psychologist Dr.