A simple activity plan treated depression as well as CBT in a big trial

Key takeaways

• Sadness usually fades, but depression means symptoms most of the day, nearly every day, for at least two weeks, and it can be treated³⁴.
• In a 440-person British trial, behavioral activation delivered by junior workers with five days of trial training did no worse than CBT from accredited therapists, and cost about 21% less to deliver¹².
• The U.S. Preventive Services Task Force recommends depression screening for all adults, and the PHQ-9 questionnaire caught 85% of cases at its usual cutoff⁷.
• Omega-3 products rich in EPA, saffron and St. John’s wort have real but mixed evidence, and St. John’s wort weakens many medicines, including birth control pills and some antidepressants⁸⁹¹⁰¹¹.
• If you or someone you know is thinking about suicide, call or text 988 to reach the 988 Suicide & Crisis Lifeline, any time⁶.

Between 2012 and 2014, researchers in Devon, Durham and Leeds, England, enrolled 440 adults with major depression in a head-to-head test¹.

Half got cognitive behavioral therapy (CBT) from accredited CBT therapists¹. The other half got behavioral activation from junior mental health workers: graduates who had never trained as therapists or earned a mental health credential¹. Both sets of providers got five days of training for the trial¹.

A year later, the two groups’ average depression scores were the same: 8.4 on the PHQ-9 questionnaire, down from about 17¹². That’s a drop from the moderately severe range to mild². Behavioral activation cost about 21% less to deliver¹².

The trial, called COBRA, appeared in The Lancet in 2016 and was funded by Britain’s National Institute for Health Research¹. Its message was simple: effective help for depression doesn’t always require the most highly trained, most expensive professionals¹.

Behavioral activation fits what many natural-health readers already believe. It asks you to change what you do each day, on purpose, before you feel like it. No pill is required, though it can work alongside one.

This guide covers how to tell low mood from depression, build your own activity plan, weigh natural remedies and know when to call for help.

Sadness passes, and depression lingers and spreads

Everyone feels sad or low at times, and those feelings usually pass, notes the National Institute of Mental Health (NIMH)⁴. Depression is different. It brings severe symptoms that disrupt your feelings, your thinking and daily tasks like sleeping, eating and working³⁴.

A diagnosis requires symptoms most of the day, nearly every day, for at least two weeks³. One of them must be a low mood or a loss of interest or pleasure in most activities³. Other signs include hopelessness, guilt or worthlessness, fatigue, trouble concentrating, changes in sleep or appetite, aches or digestive trouble with no clear cause, and thoughts of death or suicide³.

Depression doesn’t always look like sadness. Children and teens may seem irritable, and older adults may seem flat or unemotional³. Men may be less likely to recognize, talk about or seek help for painful feelings³.

A milder form, persistent depressive disorder, can drag on for at least two years³. And a physical problem such as a thyroid disorder, a viral illness or a medicine’s side effect can mimic depression, so a checkup matters³. NIMH adds that people with fewer symptoms may still benefit from treatment³.

How common is it? In NIMH’s summary of the 2021 national drug use and health survey, 8.3% of U.S. adults, about 21 million people, had a major depressive episode in the past year⁵.

The rate was 18.6% among adults ages 18 to 25, the highest of any adult age group⁵. About 61% of adults with depression got treatment⁵.

The PHQ-9 is a flag, not a diagnosis

In June 2023, the U.S. Preventive Services Task Force (USPSTF) recommended screening all adults for depression, including pregnant and postpartum people and older adults⁷. It found too little evidence to weigh the benefits and harms of routine screening for suicide risk⁷.

The task force noted that only about half of people with major depression are identified, and only 35% of U.S. adults with a depressive disorder get care in the first year⁷.

One tool the task force reviewed is the PHQ-9, a short self-report questionnaire about recent mood. At its usual cutoff score of 10, it correctly flagged 85% of people who had depression and correctly cleared 85% of people who didn’t, compared with an interview⁷. It includes a question about suicidal thoughts⁷.

The task force says a high score should lead to a full assessment⁷. If your score is high, or if you answered yes to the suicide question, tell your clinician directly.

Behavioral activation: change the doing, and mood can follow

Behavioral activation is a talking therapy built around action. You track how you spend your time, notice what you’ve been avoiding, and then plan and do worthwhile activities, one step at a time². You also learn what sets off the slide into avoidance and practice other responses².

This matches NIMH’s advice to keep doing things you used to enjoy³. Before COBRA, a 2014 review of 26 trials with 1,524 people found that behavioral activation clearly beat control conditions¹⁴. Most of those trials were of low quality with short follow-up, and two of the review’s authors also wrote COBRA¹¹⁴.

The COBRA team judged that evidence too thin to show the two therapies were equal, so they ran a head-to-head test¹.

In COBRA, both therapies allowed up to 20 hour-long sessions over 16 weeks, plus up to four boosters¹. All the core skills were covered by session eight¹. Workers in both groups got an hour of supervision every two weeks from experienced therapists¹.

The groups didn’t differ on anxiety, depression status or depression-free days at 12 months². Serious depression-related events, none caused by the treatment, numbered 3 in the behavioral activation group and 12 in the CBT group¹².

COBRA was designed to show behavioral activation was no worse than CBT, not better². It left out people with bipolar disorder, psychosis or acute suicide risk, and it didn’t fully account for antidepressant use². About 20% to 23% of patients didn’t improve with either therapy¹.

Why does this matter beyond Britain? The authors noted that in some low-income countries, 80% to 90% of people with depression get no treatment¹. A therapy that briefly trained workers can deliver could widen access and shorten waits¹.

NIMH notes that a version of CBT for seasonal depression also uses behavioral activation¹³.

Your “small steps” activity plan

This plan is our own design, built from the parts of behavioral activation described above². It hasn’t been tested as a package, and in COBRA, trained workers guided people through the steps¹. Use it on your own for everyday low mood, or alongside treatment for depression.

Step 1: Track three days. Each evening, jot down what you did in each part of the day and rate your mood from 0 (worst) to 10 (best). Look for activities that lifted your mood and ones you’ve been avoiding.

Step 2: Pick from the menu. Choose one activity a day that matches your energy. Mix the three kinds: something you enjoy, something that gets a task done and something with another person.

Energy today	Something you enjoy	Something that gets done	Something with people
Very low (5 to 10 minutes)	Sit outside with a warm drink; play one favorite song	Shower and dress; wash three dishes	Text one person “thinking of you”
Some (15 to 30 minutes)	Walk around the block; cook a simple meal you like	Pay one bill; clear one surface	Call a friend or relative
Steady (30 to 60 minutes)	Garden, sketch or play music again	Batch-cook for two days; tackle one postponed errand	Join a class, a worship service or a volunteer shift

Step 3: Put it on the calendar. Write the activity, the time and the place, as you would a doctor’s appointment. “Walk at 4 p.m., Elm Street loop” works better than “exercise more.”

Step 4: Shrink it if you skip it. If an activity doesn’t happen, make it smaller rather than dropping it. A 30-minute walk becomes 10 minutes. Skipping isn’t failure; it’s information.

Step 5: Check in weekly. Each Sunday, compare your mood ratings with what you did. Keep the activities that helped and swap the rest.

Your weekly mood check: Rate your average mood from 0 to 10 and answer two questions. Have I felt low or lost interest most of the day, nearly every day, for two weeks or more? Have I had any thoughts of death or suicide? A yes to the first means it’s time to see a clinician³. A yes to the second means call or text 988 now⁶.

NIMH’s own tips fit this plan: even 30 minutes of walking a day can lift mood, regular sleep and meal times help, and big life decisions can wait until you feel better³. Our mindful movement article reviews the exercise trials.

Therapy and medicine, described plainly

NIMH says milder depression is often treated first with psychotherapy, while moderate or severe depression usually includes medicine from the start³. Besides CBT and behavioral activation, interpersonal therapy focuses on relationships and life events³.

Antidepressants usually take four to eight weeks to work, and sleep, appetite and concentration often improve before mood does³. People under 25 may have more suicidal thoughts early in treatment, so the FDA advises watching everyone who takes these drugs closely³. Talk with your prescriber before starting or stopping one³.

If two antidepressants haven’t helped, options include esketamine, a nasal spray given in a clinic, and brain stimulation such as electroconvulsive therapy or transcranial magnetic stimulation³. Our article on cherry-picked studies shows how antidepressant trials were reported.

After a baby. Mild “baby blues” in the first two weeks after birth are common¹². Low mood or anxiety that is severe or lasts longer than two weeks may be postpartum depression, which generally doesn’t improve without treatment¹². Options include therapy, antidepressants and two newer FDA-approved medicines, brexanolone by IV and zuranolone by mouth¹². Our article on major life transitions covers support for new parents.

When the seasons turn. Winter-pattern seasonal depression usually starts in late fall and lifts in spring, and diagnosis requires the pattern for at least two years in a row¹³. NIMH describes light therapy with a 10,000-lux box for about 30 to 45 minutes each morning¹³. Our light article covers how to use one.

Natural remedies: real evidence, mixed results, serious interactions

First, a fact from NIMH: the FDA has not approved any natural product to treat depression, and NIMH advises talking with a provider before trying supplements for it³. That doesn’t mean nothing works, but each product’s record differs.

St. John’s wort. NCCIH, the federal center for complementary health, says it appears to beat placebo for mild to moderate depression and to work about as well as standard antidepressants⁸. The 2016 review behind that view covered 35 studies and 6,993 people, but NCCIH notes that inconsistent results and little research on severe depression lower confidence⁹. Whether it helps severe depression, or works beyond 12 weeks, is uncertain⁸.

Our placebo article covers a large 2002 U.S. trial where it didn’t beat placebo. Weighing all of that, we rate St. John’s wort promising but early rather than strong.

The bigger issue is safety: St. John’s wort can make many medicines work less well. The list includes birth control pills, the blood thinner warfarin, the transplant drug cyclosporine, some statins, and some antidepressants and heart, seizure, HIV and cancer drugs⁸.

Taken with certain antidepressants, it can cause serotonin syndrome, whose symptoms run from shaking and diarrhea to rigid muscles, and which can be fatal⁹. It may be unsafe in pregnancy⁸.

Omega-3 fish oil rich in EPA. In 2019, the International Society for Nutritional Psychiatry Research issued guidelines after an expert consensus process¹⁰. It advised products of pure EPA or with more than twice as much EPA as DHA, at 1 to 2 grams of EPA a day for at least eight weeks¹⁰. Trials of DHA-heavy products kept coming up empty¹⁰.

The best evidence was for adding omega-3 to an antidepressant, not for using it alone¹⁰. Several panel members disclosed ties to supplement makers, including the omega-3 suppliers Nordic Naturals, Martek Biosciences and Royal DSM; others had drug-company ties¹⁰. A 2021 Cochrane review of 35 trials, reported by NCCIH, found only a small benefit that was unlikely to matter much to patients⁹. Fish oil is generally well tolerated, but tell your clinician if you take drugs that affect blood clotting⁹.

Saffron. A 2019 review in Nutrition Reviews pooled 23 trials with 1,237 people, most using 30 milligrams a day for 4 to 12 weeks¹¹. Saffron beat placebo by a large margin and showed no significant difference from antidepressants in five small head-to-head trials¹¹. But 21 of the 23 trials came from Iran, and statistical tests showed strong signs of publication bias, meaning negative studies may have gone unpublished¹¹. Two included trials tested one branded extract, one of them co-written by a review author, and another author disclosed in-kind support from supplement companies¹¹.

SAMe. A 2016 Cochrane review of eight trials with 934 adults found too little high-quality evidence to draw firm conclusions⁹. People with HIV should never take it, and it may weaken the Parkinson’s drug levodopa⁹.

Remedy	Evidence	Key cautions
St. John’s wort, mild to moderate depression	Promising but early (many trials, mostly positive but inconsistent; little data past 12 weeks)89	Weakens birth control, warfarin and many other drugs; serotonin syndrome with some antidepressants89
EPA-rich omega-3, added to an antidepressant	Promising but early910	Stomach upset, fishy taste; ask about blood thinners9
Saffron, 30 mg a day	Promising but early11	Trials short, mostly from one country, likely publication bias11
SAMe	Not enough evidence9	Never with HIV; may weaken levodopa9
Behavioral activation	Strong evidence (one large trial plus a 26-trial review)114	COBRA left out bipolar disorder and acute suicide risk2

For food, light, sleep and gut health, see our articles on Mediterranean eating, morning light, insomnia treatment and the gut-brain axis.

When to call a professional

See a doctor or mental health professional if:

• low mood or loss of interest lasts most of the day, nearly every day, for two weeks or more³;
• symptoms keep getting in the way of work, family or daily tasks, or don’t go away³;
• you’re drinking or using drugs more than usual³;
• after a birth, low mood lasts beyond two weeks, or you have trouble bonding with your baby¹²;
• your low mood returns with the same season two years in a row¹³.

Questions readers ask

The bottom line

Low mood is part of being human, and it usually passes. When it lingers for two weeks or more and starts to crowd out sleep, appetite and interest, it may be depression, which is common and treatable.

Behavioral activation offers a practical, drug-free way to fight back by planning small, meaningful actions, and in a large trial it matched CBT. Natural remedies such as St. John’s wort, EPA-rich omega-3 and saffron have real but mixed evidence, and St. John’s wort can clash with many medicines.

Tell your clinician what you take. If thoughts of suicide appear, call or text 988.

Related reading

• Anxiety responds to therapy, medicine and exercise, and some calming herbs carry real risks
• A cloudy morning outside beats a bright office for your body clock
• Mindful movement works mostly through the movement, and Alexander lessons are the surprise
• Antidepressant trials succeeded 94% of the time in journals and 51% of the time in FDA files
• Placebos ease how you feel but rarely change what doctors measure

Sources

1. Richards DA, Ekers D, McMillan D, et al. “Cost and outcome of behavioural activation versus cognitive behavioural therapy for depression (COBRA): a randomised, controlled, non-inferiority trial.” The Lancet, 2016;388(10047):871–880 (Durham University repository, accepted manuscript). pubmed.ncbi.nlm.nih.gov
2. NIHR Evidence. “Simpler, cheaper therapy (behavioural activation) can be as good as CBT for treating depression.” National Institute for Health Research, October 5, 2016. evidence.nihr.ac.uk
3. National Institute of Mental Health. “Depression.” NIH Publication No. 24-MH-8079, revised 2024. nimh.nih.gov
4. National Institute of Mental Health. “Depression” (health topic). NIH, last reviewed December 2024. nimh.nih.gov
5. National Institute of Mental Health. “Major Depression” (statistics, 2021 National Survey on Drug Use and Health). NIH, updated July 2023. nimh.nih.gov
6. National Institute of Mental Health. “Warning Signs of Suicide.” NIH, 2025. nimh.nih.gov
7. U.S. Preventive Services Task Force. “Depression and Suicide Risk in Adults: Screening.” Final recommendation statement, June 20, 2023. uspreventiveservicestaskforce.org
8. National Center for Complementary and Integrative Health. “St. John’s Wort.” NIH, last updated May 2025. nccih.nih.gov
9. National Center for Complementary and Integrative Health. “Depression and Complementary Health Approaches: What the Science Says.” NCCIH Clinical Digest, December 2021. nccih.nih.gov
10. Guu TW, Mischoulon D, Sarris J, et al. “International Society for Nutritional Psychiatry Research Practice Guidelines for Omega-3 Fatty Acids in the Treatment of Major Depressive Disorder.” Psychotherapy and Psychosomatics, 2019;88(5):263–273. pubmed.ncbi.nlm.nih.gov
11. Marx W, Lane M, Rocks T, et al. “Effect of saffron supplementation on symptoms of depression and anxiety: a systematic review and meta-analysis.” Nutrition Reviews, 2019;77(8):557–571 (Bond University accepted manuscript). pure.bond.edu.au
12. National Institute of Mental Health. “Perinatal Depression.” NIH Publication No. 23-MH-8116, revised 2023. nimh.nih.gov
13. National Institute of Mental Health. “Seasonal Affective Disorder.” NIH Publication No. 23-MH-8138, revised 2023. nimh.nih.gov
14. Ekers D, Webster L, Van Straten A, Cuijpers P, Richards D, Gilbody S. “Behavioural activation for depression; an update of meta-analysis of effectiveness and sub group analysis.” PLoS ONE, 2014;9(6):e100100 (Durham University repository record). pubmed.ncbi.nlm.nih.gov