The evidence ledger
Findings with population, result, applicability and uncertainty attached.
Research preview · selected sources rechecked September 14, 2026 · independent clinical review pending. These editorial assessments are not formal GRADE ratings. No study here establishes an effect of Brighter Postpartum.
Counseling can reduce perinatal depression risk
2025 draft pooled RR 0.83 (95% CI 0.72–0.95). Relative reductions were 31% in increased-risk and 5% in lower-risk/unselected groups. Historical 2019 pooled RR: 0.61 (0.47–0.78).
Read population and limitations ↗supportedProactive trained peer support has prevention evidence
At 12 weeks, 14% versus 25% scored above the EPDS threshold; reported NNT 8.8.
Read population and limitations ↗supportedROSE interpersonal prevention program
Depression at six months occurred in 16% versus 31%.
Read population and limitations ↗promisingTask-shared prenatal anxiety intervention
Among 755 assessed postnatally, major depression was 12% versus 41%; adjusted odds ratio 0.19.
Read population and limitations ↗supportedSupervised nonspecialist teletherapy can scale care
Trained nonspecialists were noninferior to specialists, and telemedicine to in-person therapy.
Read population and limitations ↗promisingTechnology-assisted peers can deliver an established therapy
Technology-assisted peer delivery was noninferior to the established Thinking Healthy Programme.
Read population and limitations ↗mixedUniversal automated CBT prevention can fail
MDE occurred in 2.35% versus 2.91%; HR 0.85 (95% CI 0.61–1.20), not statistically significant.
Read population and limitations ↗promisingPrenatal insomnia treatment has promising downstream effects
Probable depression at three months postpartum was 4% versus 18%, a secondary outcome.
Read population and limitations ↗supportedExercise can improve symptoms after appropriate recovery
Depressive symptoms: SMD −0.52 (95% CI −0.80 to −0.24). Four small trials found depression odds OR 0.55.
Read population and limitations ↗mixedMindfulness is a reasonable optional adjunct
One review reported depressive symptoms SMD −0.53; another found no significant pooled EPDS difference.
Read population and limitations ↗promisingYoga evidence is encouraging but small
Symptom improvements favored yoga.
Read population and limitations ↗mixedJournaling is not a proven PPD prevention package
No significant differences in the main outcomes at one or six months.
Read population and limitations ↗limitedFaith may offer meaning and community, not a cure guarantee
Organized participation was associated with fewer symptoms in this cohort.
Read population and limitations ↗unsupportedNLP has insufficient evidence for health claims
Most included randomized studies did not show significant benefits; bias was substantial.
Read population and limitations ↗limitedVitamin D is a deficiency discussion, not a cure stack
EPDS mean difference −2.70 (95% CI −3.68 to −1.71), rated low certainty.
Read population and limitations ↗mixedLarge DHA prevention trial was not positive
High EPDS symptoms: 9.67% versus 11.19%; RR 0.85 (95% CI 0.70–1.02), not significant.
Read population and limitations ↗limitedOne probiotic signal is not a class effect
Mean depression symptom score was 1.2 points lower with HN001.
Read population and limitations ↗unsupportedMagnesium and zinc are not established PPD treatments
Neither mineral significantly improved depression or anxiety compared with placebo.
Read population and limitations ↗limitedAmino-acid/blueberry product: negative primary, positive exploratory result
No primary mood-induction effect; exploratory baby-blues score favored supplementation (effect size 0.62).
Read population and limitations ↗avoidPlacenta capsules have no established benefit and infection risk
No robust mood benefit in the pilot; contaminated capsules were implicated in recurrent infant infection.
Read population and limitations ↗avoidTheanine lactation data are insufficient
LactMed reports no breastfeeding-use data and advises avoiding supplemental theanine when nursing a newborn or preterm infant.
Read population and limitations ↗promisingBright-light therapy is not the same as sunlight advice
Study-defined remission favored bright light, 73% versus 27%.
Read population and limitations ↗supportedSertraline has randomized treatment evidence
Response 59% versus 26%; remission 53% versus 21%.
Read population and limitations ↗promisingPreventive medication may be considered after prior PPD
Recurrence: 1/14 sertraline versus 4/8 placebo in a small pilot.
Read population and limitations ↗supportedZuranolone can improve PPD symptoms rapidly
Day-15 HAM-D change −17.8 versus −13.6; difference −4.2 points (95% CI −6.9 to −1.5).
Read population and limitations ↗supportedBrexanolone listings need an availability correction
FDA withdrew Zulresso approval effective April 14, 2025 after the sponsor reported it was no longer marketed.
Read population and limitations ↗supportedPsychosis needs urgent professional care
Usually begins abruptly in the first two weeks; hallucinations, delusions, mania or severe confusion warrant emergency assessment.
Read population and limitations ↗supportedUnwanted intrusive thoughts are not equivalent to intent
Unwanted infant-harm thoughts/OCD were not associated with increased reported maternal aggression in this sample.
Read population and limitations ↗promisingA prescription digital therapeutic already exists
At least four-point EPDS improvement: 86.3% versus 23.9% with sham app.
Read population and limitations ↗supportedGuided digital CBT has diagnosis-based trial evidence
At follow-up, 15/19 assessed intervention participants versus 4/22 usual-care participants no longer met diagnostic criteria.
Read population and limitations ↗mixedFirst births can carry increased risk, but parity is not destiny
Primiparity pooled RR 1.76 (95% CI 1.59–1.96) in one evidence synthesis.
Read population and limitations ↗promisingHormone sensitivity differs across individuals
Significant mood symptoms occurred in 5/8 with PPD history and 0/8 controls.
Read population and limitations ↗supportedDepressive symptoms can appear later in the first year
7.2% reported symptoms at 9–10 months; 57.4% of later-positive respondents had not reported symptoms at 2–6 months.
Read population and limitations ↗supportedPrior symptoms, adversity and support are important risk contexts
History of depression/anxiety, low support, violence and stressful life events repeatedly correlate with PPD.
Read population and limitations ↗supportedThyroid symptoms can overlap with postpartum depression
Thyroid dysfunction can cause mood, energy and sleep symptoms; assessment may be appropriate based on history and presentation.
Read population and limitations ↗supportedECT remains a specialist option for severe illness
Guidance includes ECT in selected severe cases; 2026 review summarizes a limited predominantly nonrandomized literature.
Read population and limitations ↗mixedAnemia treatment is a clinical issue, not a universal iron mood stack
At six weeks, EPDS outcomes did not differ significantly between three active iron-treatment groups.
Read population and limitations ↗limitedAccelerated TMS for PPD remains a research question in an ongoing trial
Mount Sinai lists the SAINT study as recruiting, with completion planned for 2029.
Read population and limitations ↗promisingClinician-delivered EMDR has a postpartum birth-trauma trial
Two clinician-delivered sessions between two and five weeks postpartum reduced PTSD symptoms and related distress compared with telephone contacts.
Read population and limitations ↗limitedMassage may help immediate comfort without proving depression prevention
Day-two massage improved immediate discomfort and several mood measures relative to bed rest.
Read population and limitations ↗mixedAcupressure plus music had a short-lived screening signal
EPDS-based status favored the intervention at one week; no significant difference remained at six weeks.
Read population and limitations ↗promisingGroup singing has a qualified early postpartum trial signal
Overall faster improvement was not significant (P=.16); the moderate/severe symptom subgroup favored singing (P=.033).
Read population and limitations ↗promisingA larger singing trial found later symptom differences
Between-group EPDS differences were not significant at weeks 6/10. Later post-hoc comparisons favored singing: week 20 difference -1.59; week 36 -1.56.
Read population and limitations ↗limitedSinging-related communication findings need replication
The secondary analysis reported improvements in some maternal communication measures after singing.
Read population and limitations ↗limitedMothers described identity and achievement, not only symptom relief
Reported themes included shared creative experience, time for themselves, achievement/identity, perceived infant calming and bonding.
Read population and limitations ↗promisingRelational savoring can support connection in an adjacent population
Greater immediate gratitude/pride and closeness; later sensitivity to toddler cues improved. Overall parenting wellness did not improve at three months.
Read population and limitations ↗promisingPost-NICU savoring has an immediate wellbeing signal
Immediate increases in closeness, parenting satisfaction and emotional wellbeing favored savoring.
Read population and limitations ↗limitedPositive-affect treatment is useful inspiration, not app validation
Composite clinical improvement favored positive-affect treatment, with a small between-group advantage. Separate positive-affect and interviewer-anhedonia outcomes did not establish superiority.
Read population and limitations ↗mixedLess distress does not automatically mean more positive affect
The program reduced negative affect but did not improve positive affect or life satisfaction in this report.
Read population and limitations ↗promisingSelf-guided skills can help selected parents, but dropout matters
Depression symptom change favored the program (-3.35 versus -1.48); anxiety symptoms also improved more.
Read population and limitations ↗supportedCoparenting belongs in the intervention target
Benefits were reported across multiple coparenting, parenting and adjustment outcomes.
Read population and limitations ↗limitedCompassion work is promising but not a one-line cure
Self-esteem, rumination and loneliness outcomes favored the intervention.
Read population and limitations ↗limitedPeer storytelling is promising design territory, not treatment proof
Accounts suggest that stories can offer recognition, information and a sense of connection.
Read population and limitations ↗limitedSinging together may affect how a moment feels
Immediate closeness, affect and anxiety outcomes favored the singing condition.
Read population and limitations ↗promisingDistal digital interventions can modestly improve postpartum symptoms
Depression favored intervention after treatment (d −0.28, 95% CI −0.41 to −0.15) and at follow-up (d −0.27, 95% CI −0.52 to −0.02).
Read population and limitations ↗supportedPregnancy-to-postpartum hormones are a transition, not a personal mood forecast
Placental endocrine support ends after delivery; estrogen/progesterone withdrawal can matter in susceptible individuals.
Read population and limitations ↗supportedProlactin and oxytocin do different jobs in milk production and release
Prolactin supports production; oxytocin contributes to milk ejection. Effective milk removal also matters.
Read population and limitations ↗promisingBrain remodeling is not evidence of lost intelligence
Structural brain trajectories during pregnancy and postpartum have been observed.
Read population and limitations ↗mixedFathers have a transition too, but not the same placental hormone withdrawal
Some longitudinal findings link becoming a father with lower testosterone; different observational populations show different relationships.
Read population and limitations ↗limitedInvisible planning is work, but correlation is not an app trial
Greater cognitive household labor was associated with poorer maternal wellbeing measures.
Read population and limitations ↗supportedPostpartum care is an ongoing process
Contact in the first three weeks, ongoing care as needed and a comprehensive visit no later than twelve weeks are recommended.
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