Dr. Linda Mayes, from the Yale School of Medicine, discusses the impact of stress on parental care. Using the brain's reward system and its regulation of stress as an example, Dr. Mayes discusses how addicted parents can respond to children with maladaptive behaviours when faced with parenting situations. She also discusses how parenting abilities are passed down via intergenerational transmission, demonstrating that children reared in stressful environments are likely to assume the stress-inducing traits of their parents when it comes to raising their own children.