NOOS
ENRU

Caregiving

Caregiver burden: what research knows and what it does not

Caregiver burden is the strain people report from caring for a family member over time. Large reviews find that caregivers report more depression and stress than non-caregivers, that the strain tracks the conditions of care, and that support programs improve mood more reliably than they reduce burden itself.

PublishedResearch summaryPublished Mostly United States, plus international reviews

What we conclude

Caregiver strain is common and measurable. In meta-analyses and one clinical review, it is linked with the conditions of care — behaviour problems of the person cared for, isolation, money stress, having had no choice — and caregivers' health is linked more closely with their own depression than with objective load; these are associations, not proof of cause. Support that improves mood exists; reliable ways to lower burden itself are still thin.

What we will not claim

Most of this evidence is observational: it shows association, not that caregiving causes poor health. Effects of support programs are small and uneven, and most trials involve dementia care. Caregiver burnout is not a diagnosis, and this page does not assess anyone.

If you are in immediate danger, contact local emergency services. For suicidal thoughts, go to iasp.info/suicidalthoughts. Find help

What researchers mean by caregiver burden

In research, caregiver burden means the perceived, many-sided strain of caring for someone close over time. It is a research concept, not a medical diagnosis. The most widely used measure is the Zarit Burden Interview, first published in 1980 with 29 items; a 22-item version is now common. It is a licensed research instrument, not a self-test, so its items are not reproduced here.

How many people care for someone

In the United States, the 2025 national caregiving survey counted 63 million adults — about one in four — who regularly cared for an adult or a child with a complex condition or disability in the past year, roughly 20 million more than in 2015. Seven in ten family caregivers also work. Half report a negative financial impact, and a quarter have taken on debt. These are self-reported figures for one country, and part of the rise may reflect changes in survey wording. This page does not give figures on how many hours a week or how many years care lasts.

What burden depends on

A meta-analysis of 176 studies found that caregivers' physical health was more closely linked to their own depressive symptoms than to objective load, and that behaviour problems of the person cared for mattered more than the degree of impairment or hours of care. Older age, lower socioeconomic status and less informal support were linked to worse health. A clinical review in JAMA lists further risk factors: female sex, lower education, living with the person cared for, more hours of care, depression, social isolation, financial stress, and having had no choice in becoming a caregiver. These are correlations; the direction of the link is not established.

How caregiving is linked to health

A meta-analysis of 84 studies found that caregivers report more depression and stress and lower well-being than non-caregivers; the difference in physical health was significant but small, and gaps were larger among dementia caregivers. In the US survey, one in five caregivers rates their own health as poor. One cohort of older spouses found higher four-year mortality only among caregivers who reported emotional strain; this was one cohort, and it has not been confirmed as a general rule. Most of these studies compare groups at one point in time and do not show that caregiving is the cause.

What the evidence says helps

A 2025 review of 40 systematic reviews found that support programs reduced depression in 23 of 26 meta-analytic reviews, but reduced burden in only 9 of 16, mostly with small effects, and improved quality of life in 8 of 17; the clearest effects on depression came from cognitive behavioural and mindfulness-based programs (medium to large effects), though most reviews concern dementia care; the authors note low methodological quality, small samples and short programs. For internet-based psychoeducation, a meta-analysis of 13 trials found small drops in depressive symptoms and stress but no effect on burden. Peer support for dementia caregivers, in a meta-analysis of 11 studies, improved social support and quality of life, but not depression, loneliness or burden. A Cochrane review of respite care in dementia found no evidence of benefit for caregiver burden from four small trials — which reflects a lack of good studies, not proof that respite does not help.

Sources