Obesity
A chronic disease of excess body fat affecting health — defined clinically at BMI 30+, treated like any long-term condition.
Major medical bodies classify obesity as a chronic, relapsing disease — not a willpower deficit — defined screening-wise at BMI 30 or above and driven by genetics, hormonal regulation, environment, medications, and behavior in combination. Its health weight comes from downstream load: type 2 diabetes, cardiovascular disease, sleep apnea, joint disease, fatty liver, and several cancers all track with it.
The disease framing changes treatment logic: chronic conditions warrant ongoing management, which is why modern care pairs lifestyle foundations with long-term medication (GLP-1 therapy) or surgery for those who qualify, and why "finished treatment, kept the results" stories usually involve continued maintenance of some form. Clinically meaningful improvement starts around 5% body-weight loss — far short of any "ideal weight" — and health markers improve along the way.
This glossary entry is general information, not medical advice, and is written to be consistent with FDA prescribing information and primary trial publications as of its last review. Always consult a licensed healthcare provider for personal medical decisions.
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