This dissertation focuses on health and labor economics. In particular, I study how access to health insurance affects both individuals and family members. I show that the effects of being insured in childhood are long lasting. I also find that caregivers whose child is enrolled in Medicaid are in better mental health. In a different line of work, I also study how a medical innovation affects individuals. In the first chapter, I show that access to health insurance during childhood has lasting consequences, well beyond the health outcomes considered in previous literature. I develop a theoretical model to show several mechanisms through which health insurance could play a role in determining later in life outcomes. I then use the M...