Healthy Behavior Trajectories between Adolescence and Young Adulthood

Area of Science:

• Public Health
• Sociology
• Developmental Psychology

Background:

• Healthy behaviors (exercise, sleep, diet, weight, substance use) are crucial for chronic disease prevention.
• Life course changes in healthy behaviors and their social determinants are not well understood.

Purpose of the Study:

• To examine how psychosocial resources, social support, and family characteristics in adolescence influence healthy behavior trajectories through young adulthood.
• To identify factors that promote or hinder healthy behaviors during the transition from adolescence to young adulthood.

Main Methods:

• Utilized multilevel growth models with data from the National Longitudinal Study of Adolescent Health (N=10,775).
• Analyzed data across three waves, tracking individuals from adolescence (ages 13-24).
• Assessed relationships between adolescent psychosocial/social factors and subsequent healthy behaviors.

Main Results:

• A significant decline in healthy behaviors was observed during the transition to young adulthood.
• Adolescent parental support, school connectedness, and living with non-smoking parents predicted higher healthy behaviors.
• Peer support and living in single-parent or smoking-parent households were associated with lower healthy behaviors.

Conclusions:

• Adolescent psychosocial, social support, and family factors have a lasting impact on young adult healthy behaviors.
• These influences are persistent but not cumulative, highlighting critical periods for intervention.
• Interventions targeting adolescent social environments may foster long-term healthy behavior patterns.