Severe cognitive decline

There are 2 papers on severe cognitive decline in aging research: 3 observational studies in people. The newest story, Nov 13, 2026: “Hobbies linked to lower risk of cognitive decline in older adults”.

Disease

2 papers study it38 more mention it3 findings

1 new paper in 30 daysSee all 41 papers on severe cognitive decline

“level of education (OR 0.10 (95%CI 0.02–0.37), p < 0.01)”
Factors associated with severe cognitive decline in community-dwelling older persons in Cameroon (Sub-Saharan African)Research Square2024doi:10.21203/rs.3.rs-3818956/v1
  • Humans3

Associations

3

Instrumental Activities of Daily Living

downin humans1OR 0.12

1 study
  1. Instrumental Activities of Daily Living is linked with a lower risk of severe cognitive decline in humans (multivariate analysis) (OR 0.12 (95%CI 0.03–0.38)).

    “IADL score (OR 0.12 (95%CI 0.03–0.38), p < 0.001)”

    Humansmultivariate analysisn = 403

    Factors associated with severe cognitive decline in community-dwelling older persons in Cameroon (Sub-Saharan African)

    Research SquarePreprint

More on Instrumental Activities of Daily Living

Body mass index

downin humans1OR 0.88

1 study
  1. Body mass index is linked with a lower risk of severe cognitive decline in humans (multivariate analysis) (OR 0.88 (95%CI 0.78–0.99)).

    “body mass index (OR 0.88 (95%CI 0.78–0.99), p = 0.03)”

    Humansmultivariate analysisn = 403

    Factors associated with severe cognitive decline in community-dwelling older persons in Cameroon (Sub-Saharan African)

    Research SquarePreprint

More on Body mass index

Education

downin humans1OR 0.1

1 study
  1. education is linked with a lower risk of severe cognitive decline in humans (multivariate analysis) (OR 0.10 (95%CI 0.02–0.37)).

    “level of education (OR 0.10 (95%CI 0.02–0.37), p < 0.01)”

    Humansmultivariate analysisn = 403

    Factors associated with severe cognitive decline in community-dwelling older persons in Cameroon (Sub-Saharan African)

    Research SquarePreprint

Latest

Dec 2025: 3Jan 2026: 0Feb 2026: 0Mar 2026: 1Apr 2026: 0May 2026: 1Jun 2026: 0Jul 2026: 0Aug 2026: 2Sep 2026: 0Oct 2026: 0Nov 2026: 07 papers in 12 months
European Journal of Ageing

Hobbies linked to lower risk of cognitive decline in older adults

Older adults with hobbies had a 20–40% lower relative risk of moving from normal cognition to mild decline in three of four cohorts, compared with nonparticipants.Older adults with hobbies had a 20–40% lower relative risk of moving from normal cognition to mild decline in three of four cohorts, compared with nonparticipants.

Cohort · 123,802 peoplePopulations
Nature Medicine

Brain cell changes linked to cognitive decline in older people

An observational study linked cognitive decline from ages 70 to 82 with changes in the brain’s insulation and the cells that make it.An observational study linked cognitive decline from ages 70 to 82 with changes in the brain’s insulation and the cells that make it.

Cohort · 14 peopleMechanisms

See all 41 papers on severe cognitive decline