Kids who own a phone by age 12 face higher rates of depression, obesity and insufficient sleep, a new study in the journal “Pediatrics” found. Dr. Sheryl Ziegler, author of “The Crucial Years,” shares some tips on how to set limits on screen time and why it’s important for parents to model healthier tech habits. CBS earns commission on purchases through Amazon. https://amzn.to/4ovKWsc | CBS Mornings