The Childhood Roots of Cardiovascular Disease Disparities

Area of Science:

• Public Health
• Pediatrics
• Cardiovascular Medicine

Background:

• Poor socioeconomic conditions in early life are linked to increased adult cardiovascular disease (CVD) risk.
• Chronic early childhood stress, indicated by elevated cortisol, can independently trigger early atherosclerotic changes in children.
• These changes include increased intima-media thickness, a marker for CVD risk.

Purpose of the Study:

• To highlight the link between early life stress, socioeconomic factors, and cardiovascular disease risk.
• To emphasize the role of chronic stress and elevated cortisol in pediatric atherosclerosis.
• To advocate for early screening and intervention for toxic stress in children.

Main Methods:

• Review of national data on social determinants of cardiovascular disease.
• Documentation of elevated circulating cortisol levels in children experiencing stressful circumstances.
• Association of increased intima-media thickness with low socioeconomic status and CVD risk.

Main Results:

• Children in stressful environments show elevated cortisol levels as early as age 4.
• Chronic cortisol elevation is linked to increased inflammatory proteins (e.g., interleukin 6), promoting arterial wall fibrosis and scarring.
• Increased carotid artery intima-media thickness is observed in individuals with low socioeconomic status by age 18, correlating with lifelong CVD risk.

Conclusions:

• Pediatricians and healthcare professionals should screen for toxic stress in early childhood.
• Interventions to reduce stress reactivity can mitigate the risk of early atherosclerotic changes.
• Addressing early life stress is crucial for reducing the lifelong burden of cardiovascular disease.