New study links birth order to distinct health patterns

Fox News senior medical analyst Dr. Marc Siegel joins ‘Fox & Friends’ to discuss a new study indicating birth order may be linked to distinct health risks like ADHD and autism.

Fox News senior medical analyst Dr. Marc Siegel analyzes a study of 10 million children indicating that birth order shapes health risks. First-born siblings show higher rates of ADHD and autism, while second-born children face increased risks for migraines. Siegel joins Ainsley Earhardt to explain how parental attention and immune system development drive these stark differences.