Unhealthy sleep

Unhealthy sleep has been studied in 2 papers since 2021: 2 observational studies in people; 1 in the past year. The newest story, Nov 6, 2026: “Unhealthy sleep and obesity linked to multiple chronic diseases”.

Exposure

2 papers study it2 findingsUpdated

1 new paper in 30 daysSee all 2 papers on unhealthy sleep

At a glance

The findings reach people, from one lab or study. 2 independent labs in 1 country.

“The risk of diabetes associated with unhealthy sleep significantly increased with age group (HR 1·04 [95% CI 0·95-1·13] among participants aged 40 to <55 years vs 1·36 [1·01-1·85] among participants aged ≥75 years”
Age-related disparities in diabetes risk attributable to modifiable risk factor profiles in Chinese adults: a nationwide, population-based, cohort studyThe lancet. Healthy longevity2021doi:10.1016/s2666-7568(21)00177-x

None of its findings points the other way.

Humans: a single group. Cells, worms or flies and mice: nothing yet.
  • 2 independent labs in 1 country
  • Funder: National Natural Science Foundation of China
  • Humans2

What is unhealthy sleep linked with?

2

Studies link unhealthy sleep with 2 measures, most often cardiometabolic multimorbidity (1 study) and diabetes mellitus (1).

Cardiometabolic multimorbidity

upin humans1OR 3.46

1 study
  1. Unhealthy sleep is associated with cardiometabolic multimorbidity in humans (Central obesity; Fuqing Cohort; reference: sleep score <3 and no central obesity) (Adjusted OR 3.46).

    “The joint effect was stronger for unhealthy sleep combined with central obesity (FQC adjusted OR = 3.46; UKB adjusted HR = 2.55)”

    HumansCentral obesity; Fuqing Cohort; reference: sleep score <3 and no central obesityn = 34,703

    Unhealthy sleep and obesity linked to multiple chronic diseases

    Sleep health

More on Cardiometabolic multimorbidity

Diabetes mellitus

upin humans1HR 1.36

1 study
  1. Unhealthy sleep is linked with a higher risk of diabetes mellitus in adults aged ≥75 years (HR 1.36 (95% CI 1.01-1.85)).

    “The risk of diabetes associated with unhealthy sleep significantly increased with age group (HR 1·04 [95% CI 0·95-1·13] among participants aged 40 to <55 years vs 1·36 [1·01-1·85] among participants aged ≥75 years”

    Humansin adults aged ≥75 years

    Age-related disparities in diabetes risk attributable to modifiable risk factor profiles in Chinese adults: a nationwide, population-based, cohort study

    The lancet. Healthy longevity

More on Diabetes mellitus

Latest

Dec 2025: 0Jan 2026: 0Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 0Jun 2026: 0Jul 2026: 0Aug 2026: 0Sep 2026: 0Oct 2026: 0Nov 2026: 11 paper in 12 months
Sleep Health

Unhealthy sleep and obesity linked to multiple chronic diseases

UK Biobank participants with unhealthy sleep and abdominal obesity had 2.55 times the rate of developing multiple heart and metabolic conditions compared with those with…UK Biobank participants with unhealthy sleep and abdominal obesity had 2.55 times the rate of developing multiple heart and metabolic conditions compared with those with neither.

Cohort · 362,474 peoplePopulations