Social network

Intervention

4 papers4 findings

  • 2 independent labs in 2 countries
  • Funder: National Institutes of Health
  • Human trial1
  • Humans3

Outcomes

3

HDL and triglycerides

no changein humans1

1 study
  1. Social network has no effect on HDL and triglycerides in humans.

    “Increased total network size, diverse ties, or peripheral ties were associated with reduced total cholesterol and LDL, but not HDL or TG”

    Human trialincreased network size, diverse ties, or peripheral ties; independent of concurrent changes in MVPAblood6 monthsfemalesn = 199

    Expanding social networks through physical activity: implications for cardiometabolic health

    Annals of behavioral medicine : a publication of the Society of Behavioral Medicine7 Jan 2026

More on HDL and triglycerides

Subsequent moderate-to-vigorous physical activity

no changein humans1

1 study
  1. Social network has no effect on subsequent moderate-to-vigorous physical activity in humans.

    “The reverse association was not observed, as SN did not predict later MVPA.”

    Human trialunderactive Latinas1 yearfemalesn = 199

    Expanding social networks through physical activity: implications for cardiometabolic health

    Annals of behavioral medicine : a publication of the Society of Behavioral Medicine7 Jan 2026

Cognitive function

no changein humans1

1 study
  1. Social network has no effect on cognitive function in humans.

    “Primarily structural factors (social networks) and all five composite measures encompassing functional engagement were not associated with cognitive change.”

    Humansadjusted for age, sex, and educationn = 1,531

    Unpacking the Relationship Between Social Engagement and Cognitive Decline: A Longitudinal Analysis of Structural, Functional, and Qualitative Dimensions

    AAIC 2025 abstract23 Dec 2025

Associations

1

Total cholesterol and LDL

downin humans1

1 study
  1. Social network is associated with total cholesterol and LDL in humans.

    “Increased total network size, diverse ties, or peripheral ties were associated with reduced total cholesterol and LDL, but not HDL or TG”

    Human trialincreased network size, diverse ties, or peripheral ties; independent of concurrent changes in MVPAblood6 monthsfemalesn = 199

    Expanding social networks through physical activity: implications for cardiometabolic health

    Annals of behavioral medicine : a publication of the Society of Behavioral Medicine7 Jan 2026

More on Total cholesterol and LDL

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