Obesity is a medical condition, considered a disease by multiple organizations, [8][9][10] in which excess body fat has accumulated to such an extent that it can have negative effects on health.

Dec 8, 2025 · In 2022, 1 in 8 people in the world were living with obesity. Worldwide adult obesity has more than doubled since 1990, and adolescent obesity has quadrupled. In 2022, 2.5 billion adults …

Dec 2, 2025 · Although there are genetic, behavioral, metabolic and hormonal influences on body weight, obesity occurs when you take in more calories than you burn through typical daily activities …

Sep 10, 2024 · Obesity increases the risk of serious medical conditions. Treatments include changing what you eat, adding activity and mental health support. Obesity has direct and indirect effects on …

Obesity is a common, serious, and costly chronic disease of adults and children.

Dec 15, 2023 · Maps of U.S. adult obesity prevalence plus data, statistics, and research resources and findings.

Jun 28, 2023 · BMI is a calculation that compares your weight to your height. A BMI of 30 or more is in the obese category. If your BMI is 25 to 29.9, your weight is classified as overweight but not obese.

The World Health Organization (WHO) classifies people as overweight when their body mass index (BMI)—a person's weight divided by the square of the person's height—is between 25–30 kg / m 2; …

Jul 7, 2026 · A body mass index (BMI) over 25 is considered overweight, and over 30 is obese. In 2019, an estimated 5 million noncommunicable disease (NCD) deaths were caused by higher-than-optimal …

Jul 14, 2026 · The meaning of OBESE is having excessive body fat.