Obesity is a condition that has been deemed an epidemic in the United States. Results of a survey by the National Center for Health Statistics found that in the years 2003 to 2004, an estimated 66% of U.S. adults were either overweight or obese. The American Obesity Association estimates that approximately 127 million adults in the United States are overweight, 60 million obese, and 9 million severely obese. It has been argued that obese individuals have been the targets of discrimination. There is no federal law that specifically prohibits obesity discrimination. However, some obese individuals have argued that their weight can be considered a disability for purposes of the Americans with Disabilities Act (ADA) or the Rehabilitation Act of 1973 and, therefore, they have legal protection against weight discrimination. Courts have evaluated numerous claims of obesity discrimination brought under the ADA and the Rehabilitation Act. Congress enacted the ADA in 1990 to provide a clear and comprehensive national mandate for the elimination of discrimination against individuals with disabilities. The ADA prohibits discrimination based on disability in the areas of employment, public services, public accommodations, and services operated by private entities, transportation, and telecommunications. In order to prevail in a discrimination case, the plaintiff must prove, among other things, that he or she has a disability within the meaning of the ADA. The ADA defines "disability" with respect to an individual as "(A) a physical or mental impairment that substantially limits one or more of the major life activities of such individual [such as walking, or working]; (B) a record of such an impairment; or (C) being regarded as having such an impairment." The Equal Employment Opportunity Commission (EEOC) has promulgated ADA regulations that give insight as to what constitutes an impairment within the meaning of the term "disability," as well as what is considered to be "substantially limit[ing] a major life activity." The ADA regulations have been used by the courts in determining the validity of obesity discrimination claims. Obesity discrimination cases have also been brought under the Rehabilitation Act of 1973. Section 504 of the Rehabilitation Act states that "no otherwise qualified individual ... shall, solely by reason of her or his disability, ... be subjected to discrimination under any program or activity receiving Federal financial assistance." Courts have often applied the same standard when deciding cases arising under the ADA or Section 504 of the Rehabilitation Act. Also, the standards for determining employment discrimination under the Rehabilitation Act are identical to those used in title I of the ADA. The ADA regulations address whether obesity can be an impairment that qualifies as a disability under the ADA. In general, the regulations suggest that the ADA offers limited protection to obese individuals. The ADA regulations state that temporary, non-chronic impairments of short duration, with little or no long term or permanent impact, are usually not disabilities. Such impairments may include, but are not limited to, broken limbs, sprained joints [and] concussions.... Similarly, except in rare circumstances, obesity is not considered a disabling impairment. The EEOC has expounded on how obesity is to be covered under the ADA. In its ADA compliance manual, the EEOC states that being overweight, in and of itself, generally is not an impairment. On the other hand, severe obesity, which has been defined as body weight more than 100% over the norm is clearly an impairment. In addition, a person with obesity may have an underlying or resultant physiological disorder, such as hypertension or a thyroid disorder. A physiological disorder is an impairment. Based on the ADA regulations and EEOC guidance, it may be difficult for an obese plaintiff to successfully bring a discrimination claim. Still, courts have found some plaintiffs entitled to protection under the ADA. Both state and federal courts have considered whether the ADA or Section 504 applies to obesity and have used varying (and sometimes conflicting) lines of reasoning and conclusions. Courts have disagreed on issues such as (1) whether a plaintiff must have a physiological disorder in order for the plaintiff's morbid obesity to be covered under the ADA and (2) whether a plainitiff's obesity can cause a "substantial limitation of a major life activity." The following cases include some of the different arguments that courts have used in finding that a plaintiff is eligible or non-eligible for ADA or Section 504 protection. One of the first appellate decisions to address weight discrimination as a disability was Cook , which established that an obese plaintiff can be considered disabled. In Cook , the plaintiff applied for a position she had previously held as an institutional attendant. At the time Cook applied, she was five feet two inches tall and weighed 320 pounds. The institution refused to rehire Cook, claiming that Cook's weight compromised her ability to evacuate patients in an emergency situation and increased her chances of developing aliments that could lead to Cook to be out of work or claim workers' compensation. Cook brought a claim under Section 504 of the Rehabilitation Act of 1973, as well as certain state statutes, claiming that the failure to hire her was based on an unlawful perceived disability—although she was fully able to perform the job, the institution considered her physically impaired. The First Circuit Court of Appeals agreed with Cook. However, the court acknowledged that Cook could also prevail because she had an actual physical impairment. The court pointed to the fact that Cook had admitted that she was morbidly obese, and had presented expert testimony that morbid obesity is a physiological disorder, a dysfunction of the metabolic system. The institution argued that Cook's claims failed because her weight was a condition that was both "mutable" and "voluntary." The court rejected the institution's arguments and noted that nowhere in the Rehabilitation Act, nor in the regulations implementing the act, was there a mention of either characteristic disqualifying a claim. The court also discussed whether Cook's weight "substantially limited one or more [of Cook's] major life activities." The court pointed to evidence introduced by the institution demonstrating that Cook was not hired because the institution believed that her morbid obesity interfered with her ability to undertake physical activities such as walking, lifting, or bending. On this basis alone, the court stated, a jury could find that the institution perceived the plaintiff's impairment to interfere with a major life activity. In addition, the court explained that the plaintiff could be found substantially limited, without having to seek out other jobs that she was qualified to perform. The court stated that "denying an applicant ... a job that requires no unique physical skills, due solely to the perception that the applicant suffers from a physical limitations that would keep her from qualifying for a broad spectrum of jobs, can constitute treating an applicant as if her condition substantially limited a major life activity, viz., working." The First Circuit also concluded that there was no evidence that Cook could not perform the job, and it upheld the district court's decision for Cook. The Second Circuit in Francis also examined claims of obesity discrimination under disability law. In this case, the City of Meriden disciplined Francis, a firefighter employed by the city, after he failed to meet certain weight guidelines. Francis claimed that this discipline was discrimination based on a perceived disability in violation of the ADA and the Rehabilitation Act. The court found that Francis' claims failed because Francis only alleged that the city disciplined him for not meeting a weight standard, not because he suffered from an impairment within the meaning of the disability statutes. In its analysis, the court discussed the applicability of the ADA and the Rehabilitation Act to obesity. The Second Circuit stated that Francis's claim failed because "obesity, except in special cases where obesity relates to a physiological disorder, is not an impairment within the meaning of [the ADA or the Rehabilitation Act]." The court also pointed out, in dicta, that a cause of action may exist against an employer who discriminates against an employee based on the perception that the employee is morbidly obese. Still, the court concluded that simply failing to meet weight guidelines was insufficient for ADA protection. In 2006, the Sixth Circuit took up the issue of obesity discrimination in EEOC v. Watkins . In Watkins , the EEOC claimed that the defendant company violated the ADA when it discharged a morbidly obese employee after the employee sustained an injury on the job. The employee, whose weight fluctuated between 340 and 450 pounds during his employment, was injured during a routine job activity. The employee claimed he was unaware of any physiological or psychological cause for his heavy weight. After taking a leave of absence following his injury, the employee's personal doctor cleared him to work. However, a company doctor found that the employee weighed more than 400 pounds, had a limited range of motion, and shortness of breath after a few steps. The doctor determined that even though the employee met the Department of Transportation's standards for truck drivers, the employee could not safely perform the requirements of his job. The employee was terminated as a result. The EEOC argued under a "regarded as" theory, claiming that although the employee had an actual impairment, the impairment was erroneously regarded as an inability to perform his job. In its analysis, however, the Sixth Circuit did not focus on how the company regarded the employee, but instead on whether morbid obesity qualified as an ADA impairment. The court cited the ADA regulations stating that an impairment is defined in relevant part as "any physiological disorder or condition." The court interpreted this definition to require evidence of a physiological cause of morbid obesity in order for an impairment to exist under the ADA. Because the EEOC did not produce any evidence that the employee suffered from a physiological condition, the Sixth Circuit affirmed summary judgment for Watkins. It is likely that courts will continue to look at obesity discrimination under the ADA. Based on the various ways in which courts have interpreted the act and its supporting regulations, the outcome of these cases will remain an open question.