“Being in Silicon Valley makes me strict when it comes to my children's technology use. I am surrounded by it all day, so I try to avoid it when I get home. I set screen-time limits, because I think it's good to diversify activities.”

Anne Wojcicki is a Silicon Valley entrepreneur and philanthropist. She co-founded 23andMe, a company pioneering genetic testing and personalized health data, and later launched Verily, a life sciences research arm of Alphabet. Her work centers on merging technology with medicine to advance preventive healthcare and genetic research.