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Additionally, tirzepatide acts on areas of the brain involved in appetite regulation, leading to reduced hunger and increased feelings of fullness

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Obesity Disease Burden and Population Health ROI Framework Economic Cost of Obesity, Comorbidity Cascade, and GLP-1 Pharmacotherapy Value-Based Evidence Reshape Global Treatment Investment The Global Obesity Forum estimated total annual economic costs of obesity at USD 4.32 trillion annually in 2025 , representing 2.92% of global GDP and exceeding the full economic output of Germany

Specifically, neuropeptide Y/agouti-related protein (NPY/AgRP) neurons control appetite by the orexigenic effect47), and pro-opiomelanocortin/cocaine- and amphetamine-regulated transcript (POMC/CART) neurons are sensitive to peripheral hormones such as insulin and leptin by anorexigenic effects48)