There are numerous known health risks associated with obesity that reduce not only life expectancy, but quality of life as well.
Common comorbidities associated with obesity are increased risk of heart disease due to the increased work load of the heart to pump the blood throughout the body. Congestive heart failure, heart attacks, and arrhythmias are common afflictions as a result. Impaired heart health also translates to less activity which fosters weight gain and inhibits proactive measures to mediate increasing body mass. Diabetes also ranks high on the list of diseases in overweight individuals. The fatty tissue, or adipose tissue, in the body secretes a chemical that reduces cell sensitivity to insulin leading to the diagnosis. Diabetics suffer vascular effects of blood sugar on blood vessel walls leading to a hardening of arteries that contributes to increased blood pressure. They are also predisposed to amputation of distal limbs or digits as a result of increasingly reduced vessel diameter obstructing flow to the furthest areas of the body.
Increased cholesterol compounds the vascular and heart related conditions in obese individuals, as well as increased visceral abdominal fat predisposing them to a number of ill effects associated with cortisol, adrenal impairment and blood pressure.
Obesity is often a factor for development of gastroesophageal reflux disease which is a condition allowing the stomach acids to back up into the esophagus causing ulcers, irritation, and inflammation; these effects attribute to the significant number of overweight individuals who suffer asthma and sleep apnea.
Obese individuals are often physically restricted in many areas of life preventing activities that healthy individuals participate in everyday. Body habitus limits an individualís comfort in places that cannot accommodate their size, such as restaurants, airplanes etc. In fact, for many who suffer from obesity, simply walking, or getting into a car is a challenge and affects social activity and results in depression. Increased body weight on the joints also causes degeneration and furthers their struggle with physical exercise.
Obesity affects the majority of bodily systems and impairs function in a manner that is often debilitating, but most importantly, life threatening.