Research
Mixed
Obesity is primarily driven by excessive energy intake and physical inactivity, mediated by impaired central brain circuit regulation and neuroendocrine hormone dysfunction.
Focus on sustainable changes to energy intake and physical activity, but recognize that biological factors like hormones and brain circuits play a major role. If lifestyle changes are insufficient, consult a healthcare provider about medical interventions like drugs or surgery.
StrongSupportsHIGH confidence
Excessive energy intake, physical inactivity, and genetic susceptibility are main causal factors for obesity, while gene mutations, endocrine disorders, medication, or psychiatric illnesses may be underlying causes in some cases. The development and maintenance of obesity may involve central pathophysiological mechanisms such as impaired brain circuit regulation and neuroendocrine hormone dysfunction.
Why this rating
Supported by extensive epidemiological, neuroimaging, and hormonal data cited in the review.
Source
Obesity: Pathophysiology and Intervention
Yi Zhang et al. · Nutrients · 2014
DOI 10.3390/nu6115153
narrative_reviewCited 186×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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