Peer support

Peer support has been studied in 10 papers since 2023: 6 trials and 3 observational studies in people, 1 review; 4 in the past year. The newest paper, Nov 1, 2026: “Preliminary Results of the Evaluation of an Integrated Intervention Combining a Digital Platform, an Interdisciplinary Team, and Peer Support for People Listed for Liver Transplantation: A Longitudinal Mixed-Methods Study”.

Intervention

10 papers study it5 findingsUpdated Nov 1, 2026

2 new papers in 30 daysSee all 10 papers on peer support

At a glance

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

“The intervention × HPI interaction was negative and significant for walking (β = − 2.93 min/week per one-point increase in HPI; P =.041) and for MVPA (β = − 2.54 min/week per one-point increase in HPI; P =.033).”

Neighborhood context shapes physical activity intervention outcomes: a comparison of human vs. virtual advisorsBMC public health2026doi:10.1186/s12889-026-26885-5

None of its findings points the other way.

2 independent labs in 1 country

Funders: National Heart, Lung, and Blood Institute and others

Human trial6
Humans3

What did studies of peer support find?

Studies of peer support measured 3 outcomes; the most studied are optimism (1 study), stress (1) and loneliness (1).

Optimism

upin humans1

1 study

Peer support is linked with higher optimism in humans.
“with a corresponding increase in optimism.”
Humansn = 700
Anonymous, Chat-based Peer Support Reduces Loneliness in Older Adults (Preprint)
PreprintJun 7, 2023

STRESS

downin humans1

1 study

Peer support is linked with lower stress in humans.
“there was a collective decrease in all variables, including loneliness, anger, sadness, and stress”
Humansn = 700
Anonymous, Chat-based Peer Support Reduces Loneliness in Older Adults (Preprint)
PreprintJun 7, 2023

Loneliness

downin humans1

1 study

Peer support is linked with lower loneliness in humans.
“there was a collective decrease in all variables, including loneliness, anger, sadness, and stress with a corresponding increase in optimism.”
Humansn = 700
Anonymous, Chat-based Peer Support Reduces Loneliness in Older Adults (Preprint)
PreprintJun 7, 2023

What is peer support linked with?

Studies link peer support with 2 measures, most often MVPA (1 study) and walking (1).

MVPA

downin humans1

1 study

Peer support is associated with MVPA in humans (interaction with continuous HPI score) (β = − 2.54 min/week per one-point increase in HPI).
“The intervention × HPI interaction was negative and significant for walking (β = − 2.93 min/week per one-point increase in HPI; P =.041) and for MVPA (β = − 2.54 min/week per one-point increase in HPI; P =.033).”
Human trialinteraction with continuous HPI score12 monthsn = 245
Neighborhood context shapes physical activity intervention outcomes: a comparison of human vs. virtual advisors
BMC public healthMar 16, 2026

Walking

downin humans1

1 study

Peer support is associated with walking in humans (interaction with continuous HPI score) (β = − 2.93 min/week per one-point increase in HPI).
“The intervention × HPI interaction was negative and significant for walking (β = − 2.93 min/week per one-point increase in HPI; P =.041) and for MVPA (β = − 2.54 min/week per one-point increase in HPI; P =.033).”
Human trialinteraction with continuous HPI score12 monthsn = 245
Neighborhood context shapes physical activity intervention outcomes: a comparison of human vs. virtual advisors
BMC public healthMar 16, 2026