Internet use

Intervention3 papers4 findingsMeSH D000084362

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.

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 that declares the maker’s interest.

3 independent labs in 1 country

Funder: National Natural Science Foundation of China

Humans3

Outcomes

Depressive symptoms

no changein humans1

1 study

Internet use has no effect on depressive symptoms in humans (β = -0.18, 95% CI: -0.59 to 0.22, p = .40).
Humansin the primary modeln = 3,346
Internet adoption and health trajectories in older adults during COVID-19: a longitudinal study · Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 9 Sep 2026

Cognitive function

upin humans1

1 study

Internet use improves cognitive function in humans (β = 0.28, 95% CI: 0.11 to 0.44, p < .001).
Humanscompared with consistent non-usen = 3,346
Internet adoption and health trajectories in older adults during COVID-19: a longitudinal study · Archives of clinical neuropsychology : the official journal of the National Academy of Neuropsychologists · 9 Sep 2026