“I do not call my art ‘mathematical art,’” Dr. Roelofs said in a video interview about a week later. “It’s art about mathematics. Every artist has a favorite subject, things you want to talk about.

To think more positively, try meditating, journaling, and practicing positive self-talk. Studies show these habits can improve your quality of life.

In this age of "gentle parenting," the dictum to always follow their child's lead means parents are letting kids make unhealthy choices, like giving up when facing a challenge.

Try and stay positive and loving toward them, even if they're not acting very lovable. When your energy is elevated, it can't ...