Depressive Disorder

The grounding supports a multifactorial etiology rather than a single cause. Review evidence points to biopsychosocial contributors in late-life depression, and to adverse experiences in childhood, depression and anxiety disorders in childhood and adolescence, sociocultural roles with related adverse experiences, and psychological attributes related to vulnerability to life events and coping skills. The literature also notes longitudinal links with overweight and obesity, but this is presented as an association rather than a proven cause.

The supplied literature indicates shared biological pathways and neurotransmitters between depression and pain, suggesting overlapping mechanisms in comorbid states. It also includes immunology and microbiology as covered aspects, and specifically co-studies the gastrointestinal microbiome, but the grounding does not provide a more detailed mechanism. Depression is also discussed in relation to stress, psychological adaptation, anxiety, and suicidal ideation, indicating involvement of stress-related and psychological processes.

Female sex is associated with higher prevalence, incidence, and morbidity risk beginning at mid-puberty and continuing through adult life. Adverse experiences in childhood, depression and anxiety disorders in childhood and adolescence, sociocultural roles with related adverse experiences, and psychological vulnerability to life events and coping difficulties are identified as likely contributors. Overweight and obesity are also longitudinally associated with depression in the reviewed literature.

The grounding supports treatment at the level of therapy, drug therapy, and prevention and control, but does not provide specific regimens. It also indicates that antidepressant medications are used, with evidence reviewed for their benefits, and that therapy evidence has expanded in late-life depression. Psilocybin is co-studied, but the supplied material does not establish it as standard care.