A third of children and adolescents develop a mental health problem after a concussion, which could persist for several years post-injury, according to a new literature review.

Psychedelic drugs have shown promise for treating neuropsychiatric disorders like depression and posttraumatic stress disorder. However, due to their hallucinatory side effects, some researchers are trying to identify drugs that could offer the benefits of psychedelics without causing hallucinations. Researchers now report they have identified one such drug through the development of a genetically encoded fluorescent sensor -- called psychLight -- that can screen for hallucinogenic potential.

Childhood exposure to air pollution, such as nitrogen oxides and fine particulate matter, is a risk factor for mental illness at age 18. It is less of a factor than family history, but equal to lead, according to a new study. The finding comes from a cohort of 2,000 twins born in England and Wales in 1994-1995 and followed to young adulthood.

Research points to the involvement of the immune system the brain as a contributor to mental disorders such as schizophrenia.

Astronauts who spend prolonged time alone in space face mental health stressors like loneliness, isolation and more. A psychologist developed the Mental Health Checklist, a self-reporting instrument for detecting mental health changes in isolated, confined, extreme environments. She's reporting results that show significant declines in positive emotions.

Financial stress can have an immediate impact on well-being, but can it lead to physical pain nearly 30 years later? The answer is yes, according to new research.

Is it the difficulty of a task that determines whether or not students are stressed when working on it? Biologists working in biology didactics set out to find out the answers; to this end, the team used questionnaires and measured the heart rate in 209 test participants.

Researchers show that increased sensitivity in a specific region of the brain contributes to the development of anxiety and depression in response to real-life stress. Their study establishes an objective neurobiological measure for stress resilience in humans.

Researchers have shown that psilocybin -- the active chemical in 'magic mushrooms' -- still works its antidepressant-like actions, at least in mice, even when the psychedelic experience is blocked. The new findings suggest that psychedelic drugs work in multiple ways in the brain and it may be possible to deliver the fast-acting antidepressant therapeutic benefit without requiring daylong guided therapy sessions.

A new study linking spanking and child brain development shows spanking could alter a child's neural responses to their environment, in similar ways to a child experiencing more severe violence.