Depressive symptoms are not simply feeling miserable, but can include feelings of fear, loneliness irritability or lack of concentration, and even sleeplessness.
Those animals' depressive symptoms, at least, went away once the hamsters returned to a schedule that included eight full hours of total darkness per day.
In one study, funded by the National Institute of Mental Health, only one-third of patients achieved remission of depressive symptoms, defined as becoming symptom-free.
Depressive symptoms were substantially reduced and happiness markedly increased.
BBC: NEWS | Programmes | Happiness Formula | Staying happier for longer
Depressive symptoms stand out as particularly strong predictors of youth violence and aggression, and therefore current levels of depression may be a key variable of interest in the prevention of serious aggression in youth.
These problems could exacerbate depressive symptoms, he said.
An amazing recent example of this comes from a study that found that when a depressed mother takes an antidepressant medication and responds, the effect on depressive symptoms is bigger in her kids than it is in her.
For example, just this week a study reported that in contrast to the widely held notion that bullying predicts depression, the authors found just the opposite: That depressive symptoms may make a child more likely to be singled out and picked on.
FORBES: New Evidence On The Antidepressant-Suicide Connection In Kids
The SSRIs' more indirect method of action is likely the reason why there is a lag time before patients feel relief from depressive symptoms, says Ronald S. Duman, professor of psychiatry and neurobiology at the Yale University School of Medicine in New Haven, Conn.
In Liberia, studies showed that 90% of child soldiers showed evidence of post-traumatic stress disorder (PTSD) and 65% displayed symptoms of a major depressive disorder.
应用推荐