How does the impact of obesity compare to smoking on overall health and longevity?

Obesity and smoking both have significant negative impacts on overall health and longevity. Obesity is linked to various health issues such as Heart disease, Diabetes, and certain cancers, while smoking is a major risk factor for lung cancer, heart disease, and respiratory problems. Both can reduce life expectancy and quality of life. It is important to address both obesity and smoking to improve overall health outcomes.