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Low mood and depression: what the research says

1911 studies on low mood and depression in PMS and PMDD, each explained in plain English. 161 of them use the strongest designs: randomised trials and systematic reviews.

Survey study 695Randomised trial 263Cohort study 180Review 177Study 172Case-control study 141
Cohort study, 2026

What genetic factors are linked to premenstrual symptoms?

One genetic location on chromosome 12 was clearly associated with PMS. The genetic factors linked to PMS are also linked to depression.

Systematic review, 2026

How often do mood disorders and PMS or PMDD occur together?

Very often. Between 42% and 49% of women have both PMS or PMDD and a mood disorder at the same time, depending on which condition was diagnosed first.

Systematic review, 2026

Does continuous paroxetine or birth control work better for PMDD?

Both antidepressants and birth control pills are effective for PMDD. Continuous paroxetine (an antidepressant) and DROS/EE 24/4 (a specific birth control) showed the strongest effects in studies reviewed, though the evidence comes from relatively few studies.

Randomised trial, 2026

Does Kundalini Reiki help reduce PMS symptoms and improve quality of life?

Yes, according to this rigorous double-blind study. Nursing students receiving Kundalini Reiki showed significantly greater improvements in PMS symptoms and quality of life compared to those who received placebo.

Cohort study, 2026

Does having PMS before pregnancy increase the risk of postpartum depression?

Yes. Women with a PMS history were 45 percent more likely to develop postpartum depression within one year after birth, with 5.4 percent of women with PMS developing it compared to 3.8 percent without PMS.

Systematic review, 2026

Does vitamin D supplementation help PMS symptoms?

Vitamin D reduced overall PMS severity and particularly helped with physical symptoms and depression, but the certainty of this evidence is very low. We cannot be confident in these findings yet and more high-quality research is needed.

Study, 2026

How do women with PMDD process emotions differently in their brains?

Women with PMDD show increased activity in emotion-processing brain networks, especially during the luteal phase, and this baseline difference even appears in the follicular phase and relates to symptom severity.

Systematic review, 2026

Can digital tools help diagnose PMDD?

Digital tools show promise for diagnosing PMDD by helping you track symptoms, but most need more testing and better integration with healthcare systems before they're widely used.

Systematic review, 2026

Are there differences in brain activity in women with PMDD?

Yes, women with PMDD show differences in brain activity compared to women without PMDD, particularly in areas involved in emotion regulation and stress processing.

Systematic review, 2026

Do mindfulness and relaxation techniques help with PMS symptoms?

Yes. These techniques reduced physical symptoms like pain and fatigue, and emotional symptoms like anxiety and depression. However, the evidence is still limited.

Systematic review, 2026

Why do some women experience mood changes linked to their menstrual cycle?

Evidence shows these women have normal hormone levels but heightened sensitivity in their brains and cells to hormone changes. This explains PMDD and some postpartum and perimenopausal mood problems, and has led to new treatments.

Systematic review, 2026

How much of PMDD treatment improvement comes from placebo effect?

The placebo effect accounts for 20.9% to 38.4% of treatment improvement, depending on which symptom is measured. Measuring total symptoms rather than individual symptoms like depression gives more reliable results for testing new treatments.

Cohort study, 2026

Do premenstrual disorder and postpartum depression share the same genetic causes?

Yes. The conditions share significant genetic overlap with genetic correlation of 0.47 to 0.66. Two genetic locations were identified that affect both disorders, both involving brain response to hormones.

Randomised trial, 2026

Does a warm footbath help PMS symptoms and sleep quality?

A nightly warm footbath during the premenstrual phase reduced PMS symptoms and improved quality of life in women with PMS. It did not improve sleep quality.

Case-control study, 2026

Do women with PMS handle emotions differently at different times of the cycle?

Yes. Women with PMS tend to use emotion coping strategies that make symptoms worse (like dwelling on negative thoughts) and fewer strategies that help (like accepting difficult thoughts). These patterns change across the menstrual cycle.

Study, 2026

Are SSRIs the first treatment doctors recommend for PMDD?

Yes, SSRIs are the recommended first treatment for PMDD. Taking them every day works better than taking them only before your period.

Systematic review, 2026

What is it like for women to live with PMS or PMDD?

Women report lack of understanding from others and healthcare providers, confusion about their identity, impact on relationships, and difficulty getting diagnosed. Better training for healthcare professionals is needed.

Cohort study, 2025

Is there a link between premenstrual disorders and autoimmune disease?

Yes. Women with autoimmune disease have 12% higher risk of premenstrual disorders, and women with premenstrual disorders have 23% higher risk of autoimmune disease.

Systematic review, 2025

How do cognition and behavior change across the menstrual cycle in people with PMDD?

Evidence that cognitive abilities change is limited and inconsistent. A negative attention bias (focusing on negative things) appears central to PMDD.

Systematic review, 2025

Do people with PMDD and severe PMS have difficulties with emotion regulation?

People with PMDD and severe PMS may have difficulties identifying emotions and choosing how to handle them, particularly using rumination (replaying upset thoughts) in the late-luteal phase. Evidence remains limited.

Randomised trial, 2025

Does taking an antidepressant only during the second half of your cycle reduce anger and aggression in PMDD?

Yes. Taking escitalopram 20 mg during the second half of the menstrual cycle significantly reduced PMDD symptoms including irritability and anger, and reduced aggressive responses to provocation.

Cohort study, 2025

Do women with PMS or PMDD report lower quality of life than women without these conditions?

Yes. Women with PMS or PMDD reported significantly lower quality of life, particularly those with PMDD. These findings held even after accounting for mood and pain.

Cohort study, 2025

Do women with premenstrual disorders take more sick leave and have higher unemployment?

Yes. Women with premenstrual disorders have 40% higher risk of taking sick leave and 27% higher risk of unemployment compared to women without the disorder. The risk is even higher for longer absences and depression-related leave.

Cohort study, 2025

How common is PMS in Chinese teenage girls, and what factors are linked to it?

About 1 in 4 Chinese girls (24.6%) has PMS. Higher stress, anger, alcohol use, menstrual cycles of 24 days or less, and period pain are all linked to increased PMS likelihood.

Systematic review, 2025

Are PMS and PMDD more common in highly trained female athletes than in women who don't train intensively?

Female athletes had somewhat lower PMS rates and somewhat higher PMDD rates than non-athletes, but neither finding was statistically significant. We cannot be confident in these findings.

Systematic review, 2025

How common are PMS, PMDD, and painful periods in nursing students, and do they affect their schooling?

PMS affects 62% of nursing students, and 21% have PMDD or severe PMS, while 72% experience painful periods, disrupting their studies and wellbeing. These students need institutional support and evidence-based treatment.

Systematic review, 2025

Which patient-reported tools accurately measure PMS and PMDD in Japanese?

Some tools like the New Short-Form Premenstrual Symptoms Questionnaire and Japanese Daily Record of Severity of Problems showed good structural validity and internal consistency. However, most tools need further validation research.

Cohort study, 2025

Do women with a history of PMS or PMDD have more depression during pregnancy and after birth?

Women with PMS or PMDD history had higher depression scores throughout pregnancy and postpartum, with PMDD carrying higher risk than PMS.

Interview study, 2025

How common is suicidal thinking in women with PMDD?

Women with PMDD are seven times more likely to experience suicidal thinking than women without PMDD. Over 70% experience suicidal thoughts, and 1 in 3 attempt suicide.

Cohort study, 2024

Do women with severe premenstrual disorders have higher risk of relationship breakup?

Yes. Married or cohabiting women with severe premenstrual disorders have about 21% higher risk of relationship breakup. This effect is stronger for premenstrual dysphoric disorder than for premenstrual syndrome and stronger in women without depression or anxiety.

Randomised trial, 2024

Does curcumin reduce depression, anxiety, and stress in women with PMS and dysmenorrhea?

Yes, curcumin significantly reduced depression, anxiety, and stress and improved mental health and quality of life compared to placebo. This was a larger, high-quality study.

Randomised trial, 2024

Is Jiawei Xiaoyao pill effective and safe for treating premenstrual syndrome?

Yes, women who took Jiawei Xiaoyao pill experienced significantly greater reduction in PMS symptoms than those taking placebo (p=0.002 and p=0.001), with no serious side effects reported.

Randomised trial, 2024

Is Ganyushu Granule effective and safe for premenstrual syndrome?

Yes, both high-dose and low-dose Ganyushu Granule reduced PMS symptoms better than placebo starting from the second cycle, with high-dose showing the fastest improvement and no serious side effects.

Review, 2024

What do brain wave patterns show about PMS and PMDD?

Preliminary evidence suggests women with these conditions may have different brain wave patterns, but we need more research to be sure.

Systematic review, 2024

What are the best treatments for PMDD and PMS?

SSRIs (antidepressants) and combined oral contraceptives (birth control pills) have the strongest evidence. For difficult cases, GnRH agonists and surgery work. Some alternatives like acupuncture and yoga show promise but need better quality research.

Case-control study, 2024

Do steroid hormone levels change differently across the menstrual cycle in women with PMDD?

Yes. Progesterone rises earlier in the cycle in women with PMDD, leading to higher levels around ovulation and a sharper drop in the late luteal phase. This different pattern may trigger symptoms.

Review, 2024

What are the most effective treatments for PMDD?

According to this literature review, SSRIs (antidepressants) and cognitive-behavioral therapy are the most commonly recommended first-line treatments. Birth control pills with drospirenone are also effective.

Systematic review, 2024

Do SSRI antidepressants help treat PMS and PMDD?

Yes. SSRIs probably reduce premenstrual symptoms in women with PMS and PMDD based on moderate-certainty evidence from 34 studies. Daily continuous use appears more effective than taking SSRIs only before your period.

Case-control study, 2024

Are premenstrual disorders and postpartum depression connected?

Yes, they are connected both ways. Women with premenstrual disorders are 4.76 times more likely to develop postpartum depression. Women with postpartum depression are 1.81 times more likely to develop premenstrual disorders later.

Systematic review, 2024

How common is PMDD?

PMDD affects 3.2% of women when diagnosed with confirmed criteria and 7.7% when using provisional diagnosis. This means PMDD is less common than some estimates suggest.

Systematic review, 2024

Does exercise and physiotherapy help reduce PMS symptoms?

Yes. Physiotherapy significantly reduced depression in women with PMS and also reduced pain. It improves overall quality of life.

Cohort study, 2023

Are PMS symptoms linked to genetic factors for psychiatric disorders?

Yes. Women with PMS were more likely to have genetic factors for depression, bipolar disorder, ADHD, schizophrenia, and autism spectrum disorder. This was a large, well-designed study, so we can be confident in these findings.

Review, 2023

What treatments help mental and physical health problems linked to the menstrual cycle?

Multiple treatment approaches work including medicines, psychotherapy, and hormonal therapy. An interdisciplinary team approach combining different specialties works best.

Cohort study, 2023

Is PMDD a valid medical diagnosis?

Yes. PMDD is recognized by the World Health Organization and American Psychiatric Association as a distinct medical diagnosis. Evidence suggests it has real neurobiological basis, though more biological research is still needed to fully understand it.

Randomised trial, 2023

Does taking sertraline when PMDD symptoms start improve how well women function?

Relationship functioning improved more with sertraline at symptom onset, mainly because it reduced anger and irritability. However, work productivity and social activities did not improve clearly.

Systematic review, 2023

Does saffron help with PMS, labor pain, and menopause symptoms?

Yes, saffron improves mood and reduces psychological symptoms of PMS and menopause, and helps reduce labor pain and recovery time, though limited studies exist.

Case-control study, 2023

Does the serotonin system work differently in PMDD across the menstrual cycle?

Yes. Women with PMDD showed an 18 percent increase in serotonin transporter binding during the premenstrual phase while controls showed a 10 percent decrease. This increase correlated with depression severity.

Cohort study, 2023

Does PMDD increase the risk of depression or bipolar disorder later?

Yes. Women with PMDD were 2.58 times more likely to develop depression and 2.50 times more likely to develop bipolar disorder compared to women without PMDD. These conditions also developed earlier in women with PMDD.

Systematic review, 2023

Is PMDD linked to depression?

PMDD and depression are strongly linked. Nearly all studies found that people with PMDD were more likely to have depression, and people with depression were more likely to have PMDD.

Cohort study, 2023

Does having PMS increase the risk of developing depression later?

Yes. Women who reported frequent PMS in 2000 had significantly higher odds of reporting a depression diagnosis in later years, with odds of 1.72 to 1.90 times higher over the next 18 years.

Systematic review, 2023

How common are menstrual cycle problems and PMS or PMDD in female athletes?

Menstrual cycle problems are common in female athletes, with dysmenorrhoea affecting about 32%. More athletes report symptoms during their period than in the days before.

Guideline, 2023

How are GnRH agonists used to treat PMDD that doesn't respond to standard medications?

GnRH agonists combined with hormone replacement are effective for severe PMDD that doesn't respond to first-line treatments, but many doctors don't know how to use this option.

Review, 2022

What causes severe PMS and what treatments work?

Severe PMS is caused by hormone changes and brain chemistry problems. Treatments that stop ovulation with hormones or increase serotonin with SSRIs both reduce symptoms.

Cohort study, 2022

Does body size during childhood affect the risk of premenstrual disorders later?

Yes. Girls with higher BMI in childhood and adolescence had higher risk of developing premenstrual disorders by young adulthood. This association remained even after accounting for depression, anxiety, and other mental health conditions.

Systematic review, 2022

What are the best treatments for PMDD and PMS?

SSRIs (antidepressants) and combined oral contraceptives (birth control pills) have the strongest evidence. For difficult cases, GnRH agonists and surgery work. Some alternatives like acupuncture and yoga show promise but need better quality research.

Survey study, 2022

What causes PMS and PMDD and what new treatments are being studied?

PMS and PMDD involve changes in hormone sensitivity, serotonin levels, genetic factors, and inflammation. New treatments under research target progesterone receptors and inflammatory pathways.

Systematic review, 2022

What increases the risk of depression after childbirth?

Premenstrual syndrome is the strongest known risk factor for postpartum depression, nearly doubling the risk. Violent experiences and unintended pregnancy are also strong risk factors.

Cohort study, 2021

Does having PMS before pregnancy increase the risk of postpartum depression?

Yes. Women with frequent PMS before pregnancy had higher risk of postpartum depression after birth, with the risk rising as PMS became more frequent.

Systematic review, 2021

Do birth control pills help with depression and other symptoms of PMS?

Birth control pills help reduce overall PMS symptoms but not depression specifically. No particular pill is more effective than others.

Systematic review, 2021

How common are PMS and PMDD among women in India?

Very common. About 43% of Indian women have PMS and 8% have PMDD, with even higher rates of 49.6% in adolescents.