What does the research say about sleep impairment?

Sleep impairment

There are 8 papers on sleep impairment in aging research: 6 observational studies in people, 2 reviews. The newest story, Nov 7, 2026: “Sleep problems’ link to cardiovascular deaths varied by risk”.

Disease

8 papers study it57 more mention it3 findings

3 new papers in 30 daysSee all 65 papers on sleep impairment

“DHA intake <583.1 mg/d increased sleep impairment risk by 2.81-fold (95% CI:1.61-4.92, P = .006)”

The relationship between intake of dietary omega-3 and omega-6 fatty acids and sleep quality in older adults with diabetes: A hospital-based analysisMedicine2026doi:10.1097/md.0000000000047670

Humans6

Interventions

Linoleic acid

no changein humans1OR 1.79

1 study

Linoleic acid was not clearly linked with sleep impairment in humans (type 2 diabetes mellitus) (OR = 1.79, P = .842).
“linoleic acid intake (OR = 1.79, P = .842) showed no significant associations.”
Humanstype 2 diabetes mellitusn = 193
The relationship between intake of dietary omega-3 and omega-6 fatty acids and sleep quality in older adults with diabetes: A hospital-based analysis
MedicineFeb 13, 2026

Associations

Eicosapentaenoic acid

upin humans1OR 1.99

1 study

Eicosapentaenoic acid is linked with a higher risk of sleep impairment in humans (type 2 diabetes mellitus, EPA <269.3 mg/d) (OR 1.99, 95% CI: 1.05-3.75).
“while EPA <269.3 mg/d conferred 1.99-fold higher risk (95% CI:1.05-3.75, P = .012).”
Humanstype 2 diabetes mellitus, EPA <269.3 mg/dn = 193
The relationship between intake of dietary omega-3 and omega-6 fatty acids and sleep quality in older adults with diabetes: A hospital-based analysis
MedicineFeb 13, 2026

Latest

19 papers in 12 months

AHA Scientific Sessions 2026 AbstractNov 7

Sleep problems’ link to cardiovascular deaths varied by risk

Sleep scores of one and two had adjusted hazard ratios of 0.907 and 1.117 versus zero, relative death-rate measures whose uncertainty ranges included no difference.Sleep scores of one and two had adjusted hazard ratios of 0.907 and 1.117 versus zero, relative death-rate measures whose uncertainty ranges included no difference.

Cohort · 33,661 peopleCardiovascular disease