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
1Loneliness
upin humans1Low certainty
1 study
Loneliness
upin humans1Low certainty
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
Effects
3Dementia
mediatesin humans1HR 1.0062
1 study
Dementia
mediatesin humans1HR 1.0062
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
Cardiometabolic multimorbidity
mediatesin humans1
1 study
Cardiometabolic multimorbidity
mediatesin humans1
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
Mortality
mediatesin humans1
1 study
Mortality
mediatesin humans1
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
7Premature mortality
upin humans1HR 2.39
1 study
Premature mortality
upin humans1HR 2.39
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
Metabolic dysfunction-associated steatotic liver disease
upin humans1OR 2.13
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
Infection
upin humans1Low certainty
1 study
Infection
upin humans1Low certainty
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
Obesity
upin humans1
1 study
Obesity
upin humans1
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
Loneliness
upin humans1Low certainty
1 study
Loneliness
upin humans1Low certainty
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
Social isolation
upin humans1Low certainty
1 study
Social isolation
upin humans1Low certainty
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
Cell cycle regulation
upin humans1
1 study
Cell cycle regulation
upin humans1
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
Funding
National Institute of Environmental Health SciencesUS$588k1 grant since 2024