Biological-age acceleration

Biomarker6 papers11 findings

Human studies associate biological-age acceleration with frequent infection, loneliness and social isolation. One human study links it to MASLD, and to premature mortality among patients with MASLD; a human preprint associates it with obesity.

  • Humans6

Interventions

1

Loneliness

upin humans1Low certainty

1 study
  1. Loneliness increases biological-age acceleration in humans (b = 3.832 (95% CI 0.247, 7.417)).

    Humans

    Social isolation, loneliness, and biological aging acceleration · Health psychology : official journal of the Division of Health Psychology, American Psychological Association · 27 Aug 2026

Loneliness →

Effects

3

Dementia

mediatesin humans1HR 1.0062

1 study
  1. Biological-age acceleration mediates dementia in humans (HR 1.0062, 95% CI 1.0002-1.0125; mediated proportion 3.63%).

    Humanschildhood/adolescence smokingn = 285,009

    Accelerated biological aging in the association between early-life tobacco smoke exposure and dementia risk: An exploratory mediation analysis · Journal of Alzheimer's disease : JAD · 29 Sep 2026

Dementia →

Cardiometabolic multimorbidity

mediatesin humans1

1 study
  1. Biological-age acceleration mediates cardiometabolic multimorbidity in humans (5.2% to 11.1% proportion mediated, P <= 0.028).

    Humansassociation between CircS and incident diabetes, stroke, and CMM

    Circadian Syndrome and Incident Cardiometabolic Multimorbidity: The Mediating Role of Biological Age Acceleration in the CHARLS Cohort · Research Square · 10 Sep 2026 · Preprint

Cardiometabolic multimorbidity →

Mortality

mediatesin humans1

1 study
  1. Biological-age acceleration mediates mortality in humans.

    Humansassociation between social isolation, loneliness, and mortality

    Social isolation, loneliness, and biological aging acceleration · Health psychology : official journal of the Division of Health Psychology, American Psychological Association · 27 Aug 2026

Associations

7

Premature mortality

upin humans1HR 2.39

1 study
  1. Biological-age acceleration raises the risk of premature mortality in humans (HR = 2.39, 95% CI: 1.56-3.66).

    Humanspatients with MASLDn = 3,849

    Association between biological aging and premature mortality among patients with metabolic dysfunction-associated steatotic liver disease · Archives of gerontology and geriatrics · 6 Sep 2026

Metabolic dysfunction-associated steatotic liver disease

upin humans1OR 2.13

1 study
  1. Biological-age acceleration raises the risk of metabolic dysfunction-associated steatotic liver disease in humans (OR = 2.13, 95% CI: 1.82-2.50).

    Humansall participantsn = 10,933

    Association between biological aging and premature mortality among patients with metabolic dysfunction-associated steatotic liver disease · Archives of gerontology and geriatrics · 6 Sep 2026

Metabolic dysfunction-associated steatotic liver disease →

Infection

upin humans1Low certainty

1 study
  1. Infection is associated with biological-age acceleration in humans (β = 0.67, 95% CI: 0.04-1.31).

    Humansfrequent infection trajectory vs infrequent groupn = 7,614

    Longitudinal infection trajectories and biological aging acceleration in adults: a prospective cohort study · GeroScience · 5 Sep 2026

Infection →

Obesity

upin humans1

1 study
  1. Obesity is associated with biological-age acceleration in humans.

    Humansin overweight/obese phenotypes

    A Scalable Biological Clock for Metabolic Disease Prediction from the Phenome India Cohort · medRxiv · 3 Sep 2026 · Preprint

Obesity →

Loneliness

upin humans1Low certainty

1 study
  1. Loneliness is associated with biological-age acceleration in humans (b = 0.15 (95% CI 0.12, 0.18)).

    Humansn = 309,746

    Social isolation, loneliness, and biological aging acceleration · Health psychology : official journal of the Division of Health Psychology, American Psychological Association · 27 Aug 2026

Loneliness →

Social isolation

upin humans1Low certainty

1 study
  1. Social isolation is associated with biological-age acceleration in humans (b = 0.17 (95% CI 0.14, 0.19)).

    Humansn = 309,746

    Social isolation, loneliness, and biological aging acceleration · Health psychology : official journal of the Division of Health Psychology, American Psychological Association · 27 Aug 2026

Social isolation →

Cell cycle regulation

upin humans1

1 study
  1. Cell cycle regulation is associated with biological-age acceleration in humans.

    Humansin a tissue-specific manner

    Replicative history as a major determinant of epigenetic noise across human tissues · bioRxiv · 24 Aug 2026 · Preprint

Cell cycle regulation →

Funding

National Institute of Environmental Health SciencesUS$588k1 grant since 2024

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