This report delves into the multifaceted impact of obesity on public health, defining obesity according to WHO standards as the excessive accumulation of fat leading to increased health risks. It highlights the alarming prevalence rates, noting that millions of adults and children worldwide are classified as obese, with women being disproportionately affected. The report details various comorbidities associated with obesity, including cancers, diabetes, cardiovascular diseases, and mental health issues. Risk factors such as unhealthy diets, lack of exercise, genetics, and environmental factors are discussed, alongside prevention measures like healthy diets, exercise, and government-led programs. The report also emphasizes the negative impact of obesity on mortality rates, healthcare expenditures, and mental health, concluding that obesity poses a significant global public health challenge. The report references various sources to support its findings.