The classification standard of China stipulated in the Guidelines for the Prevention and Control of Overweight and Obesity among Adults in China issued by the former Ministry of Health, with a BMI of 18.5~23.9kg/m? For normal weight, 24~27.9kg/m? Is overweight, BMI≧28kg/m? For obesity.
When we are obese (BMI> 28), the total amount of blood needed by human body has increased. The heart, which was originally the size of a fist, would be prone to insufficient blood supply, and the heart could only increase its contraction strength and work overtime, so it would feel prone to chest tightness.