New tissues formed by fat gained needs blood supply, so the vascular system expands to accommodate it. This means that the heart has to pump blood through an extra seven miles of blood vessels. This additional distance makes the heart work harder and may reduce oxygen and nutrients supplied to other tissues.
As a result of this, there is a higher risk of coming down with health problems such as high blood pressure, atherosclerosis, heart attack, heart failure, blood clots in vessels, peripheral artery disease, etc.
Being overweight increases the risk of heart disease by 32% and obesity increases the risk by 81%. Losing excess weight will cause the body to breakdown and resorb the extra blood vessels formed, and can bring about a positive physical and emotional feeling, which can in turn, cause an individual to live a longer and healthier life.