Indoor solid fuel use

2 papers3 findings

C, W, M, H: cells, worms or flies, mice, humans. Dark: independent labs found the same change there. Light: one lab or one study. Outline: nothing yet.

Labs are independent when their papers share no last author and no institution.

Against: findings that point the other way from most findings on the same outcome.

On aging: the drug’s trials ARN judged to be about aging, of every trial that tests it for any use.

No results posted: trials that ended more than a year ago with no results on ClinicalTrials.gov and no paper in ARN’s record.

Company ties: findings with an author at a company, or from a paper whose competing-interests statement declares ties to one.

2 independent labs in 1 country

Funder: National Social Science Fund of China

Humans1

Outcomes

Muscle strength

downin humans1OR 1.31

1 study

Indoor solid fuel use impairs muscle strength in humans (OR = 1.31 (cooking/heating) to 1.49 (both)).
“solid fuel use was linked to higher odds of low muscle strength (cooking: OR = 1.31; heating: OR = 1.31; both: OR = 1.49)”
Humans
The inverse association between indoor solid fuel use and successful aging among middle-aged and older adults: longitudinal evidence from the China health and retirement longitudinal study
International journal of environmental health research30 Mar 2026

Successful aging

downin humans1OR 0.74

1 study

Indoor solid fuel use decreases successful aging in humans (OR = 0.74, 95%CI = 0.68-0.80, P < 0.001).
“solid fuels for cooking or heating was significantly associated with lower odds of achieving successful aging (cooking: OR = 0.74, 95%CI = 0.68-0.80, P < 0.001”
Humanscooking
The inverse association between indoor solid fuel use and successful aging among middle-aged and older adults: longitudinal evidence from the China health and retirement longitudinal study
International journal of environmental health research30 Mar 2026

Associations

Cognitive impairment

upin humans1OR 1.29

1 study

Indoor solid fuel use is associated with cognitive impairment in humans (OR 1.29, 95% CI 1.16–1.45).
“Both passive smoking and solid fuel use in the home environment significantly increase the risk of developing cognitive impairment in middle-aged and older adults.”
Reviewhome environment
A meta-analysis of the effect of indoor air pollution on cognitive impairment in middle-aged and older adults
Geriatrics Research21 Sep 2026