Obesity like other diseases, impairs the normal functioning of the body? How?

According to the medical journal, people with obesity are likely to have health problems such as high blood pressure and heart disease. These facts are already well known online. However, almost every person can not feel this dangerousness because they have never experienced these diseases due to obesity. I studied sitting in a chair for 15 hours a day to enroll in a university last year. My high school served three meals however, because of the tight school study schedule, it was hard to digest all of the foods that I ate. And it was connected to the lack of exercise and being overweight. At that time, I did not have any disease by overweight. However, I encountered trivial barriers during my daily life. First of all, I often experienced foot numbness and I felt easily tired even though I exercised for minutes. Given my experience and many medical journals, obesity can impair the normal functioning of the body.