Stress & mood

Are stress, anxiety and depression the same thing?

They can overlap, but they are not interchangeable. Stress is often a response to a pressure or event, such as caring for someone or losing a job; that pressure can be brief or ongoing. Anxiety is a feeling of worry or threat that can continue even when there is no immediate danger. Both can affect sleep, concentration and the body.

Depression is more than an occasional low day. A depressive episode involves low mood or loss of interest for much of the day, nearly every day, for at least two weeks, alongside other symptoms. These descriptions cannot diagnose you, and you do not need to wait two weeks to ask for help.46

What can help, beyond a product?

The right kind of support depends on what is happening and how it affects daily life. Talking with someone you trust, making space for rest, regular meals and manageable movement can help some people. Sleep problems can have several causes: our sleep guide helps separate them.

For persistent, worsening or disruptive symptoms, a health professional can help assess what may be contributing and discuss options. For depression, effective care can include psychological treatment and, in some circumstances, medicines. Supportive habits do not replace professional care when it is needed.5612

When is help urgent?

If you have thoughts of suicide or an urge to harm yourself, seek immediate help from a local crisis service or health professional and tell someone you trust. If you or another person is in immediate danger, contact local emergency services now. Severe confusion or agitation also needs urgent assessment.

In the EU, call 112 for an emergency. In the United States, call or text 988 for the Suicide and Crisis Lifeline; call 911 in a life-threatening emergency. Numbers and services differ elsewhere.5611

Why does the context of a claim matter?

A trial in people with a diagnosed condition, using a defined product with preparation and support, answers a different question from an advertisement for a retail supplement or unsupervised use. A change in a questionnaire score also does not automatically tell us whether a person recovered or whether any effect lasts.9

A promising biological explanation is not enough. Check the people studied, the product, the comparison and the unwanted effects. Interactions, impaired judgement, dependence, contamination or delayed care can matter, depending on the substance. Our guide to supplement and medicine interactions explains why a full product list matters.7

For a concrete example, see what a vitamin B6 trial did and did not show about anxiety: a nutrient’s normal role in the brain does not prove that extra intake improves mood.3

Claims about the “love hormone” raise a different question: see what studies of oxytocin, trust and social behaviour measured.

St John’s wort: a plant with important interactions

Some studies of particular extracts suggest benefit for mild-to-moderate depression, but results are mixed and long-term evidence is less clear. St John’s wort can weaken a range of medicines, including some contraceptives; combining it with certain antidepressants can also cause serious effects. Read the St John’s wort evidence and interaction guide before drawing conclusions from a product claim.7

Ashwagandha: stress studies and safety questions

Some ashwagandha preparations have been studied for stress and sleep, but the findings do not establish that every product helps anxiety. Long-term safety is uncertain, interactions are possible, and rare liver-injury reports have been linked to products containing it. The ashwagandha profile explains the research and risks together.8

Psilocybin: what is being studied?

Some trials have studied psilocybin with psychological support for depression; benefits, duration and risks remain under investigation. A defined substance in a screened, supported research setting is not the same as an unverified product or unsupervised use. Explore the psilocybin profile and its links to the studies. Experiences can include fear or confusion; psychotic and bipolar conditions raise additional safety concerns.9

MDMA-assisted therapy: a different research question

Researchers have studied MDMA combined with psychological support for post-traumatic stress disorder (PTSD), a condition that can follow a traumatic event. This is not a study of a general stress supplement. Study design, risks, support and the regulatory position all matter; access and rules vary by place. Read the MDMA-assisted therapy profile for the trial evidence and its limits.10

Semax and Selank

Some people encounter these peptides while researching stress and focus. The questions and studies differ, and the evidence does not establish that either treats an individual’s symptoms. Compare Semax and Selank. For the distinct anxiety question, compare the Selank reports and their limitations. Brain-scan patterns and anxiety symptoms are different outcomes: explore the Semax and Selank imaging studies.1213