Resistance training can be one part of a mental-health plan. It can provide structure, social contact, mastery, sleep benefits, and a direct exercise stimulus. It is not a cure for depression, a substitute for urgent care, or proof that a heavy programme is better than therapy or medication for an individual.
Depression and anxiety symptoms
A 2025 systematic review and meta-analysis of 29 randomized trials in adults with diagnosed depression found that resistance training reduced depressive symptoms compared with non-exercise controls. Heterogeneity was high, and the authors described training-prescription findings as exploratory rather than a universal dose (Chang et al.).
Other reviews reach a similar broad direction with important qualifications. A 2025 meta-analysis of aerobic and resistance exercise in adults with depression or anxiety found benefits for exercise overall, but it did not establish one mode as best for every person (Banyard et al.). An earlier resistance-training-only review found heterogeneous results across just four eligible studies, which is a useful warning against overselling certainty (Carneiro et al.).
These studies measure symptom scores, not a guaranteed change in diagnosis, relapse risk, or life circumstances. Some participants receive supervision and clinical support that a gym programme does not reproduce.
What to do if you want to train
Choose a dose you can sustain:
- use stable, manageable exercises;
- start with fewer sessions or sets if energy is low;
- leave room for technique and recovery;
- train with a person or professional if safety or motivation is a barrier;
- treat a short walk, mobility session, or light circuit as a valid starting point.
There is no need to make every session heavy, maximal, or painful. Consistency and tolerability usually matter more than a dramatic programme. If training worsens agitation, sleep, pain, compulsive exercise, or exhaustion, reduce it and discuss the change with a clinician.
The “brain age” problem
Brain-age algorithms infer an estimated age from imaging or other data. They are research measures with model, sample, and measurement uncertainty; a change in the score is not the same as a person becoming biologically younger or avoiding dementia. There is no basis here for claiming that heavy lifting shaves a fixed number of years off brain age or that more weight produces more neuroprotection.
Exercise research does support associations and possible mechanisms involving vascular health, sleep, mood, and neuroplasticity. Those mechanisms do not turn a biomarker or functional-imaging result into a clinical promise.
When exercise is not enough
Seek professional help for persistent depression, suicidal thoughts, mania, psychosis, severe anxiety, substance-related risk, or inability to manage daily life. In an emergency, contact local emergency services or a crisis service. Do not stop prescribed medication or replace treatment because a fitness article says lifting is “preventive medicine.”
Bottom line
Resistance training is a plausible and often useful adjunct for depressive or anxiety symptoms, with randomized-trial evidence pointing in a beneficial direction but with heterogeneity and no single best prescription. Train in a sustainable way, keep clinical care in place, and reject fixed brain-age or “heavier is better for mental health” claims.
Related reading
Limits of the evidence
Mental-health trials vary in diagnosis, baseline symptoms, supervision, adherence, comparator, and follow-up. Symptom improvement is not the same as a cure, and exercise should be adapted to the person's medical and psychological context.
Sources
- Resistance training for depression. 2025 systematic review and meta-analysis of randomized trials.
- Aerobic and resistance exercise for depression and anxiety. 2025 systematic review and meta-analysis.
- Resistance-training programmes in people with depression. Earlier systematic review with heterogeneous findings.
- Resistance training in depression. Clinical review discussing efficacy and safety limits.
APPLY IT IN THE GYM
Build the body people notice.
Surpass keeps working sets, recent performance, targets, and rest timing together on iPhone.
Start free on iPhone