Chronic health problems can become an issue along with disability or disease. The benefit of measles vaccination in preventing illness, disability, and death have been well documented. The benefit of measles vaccination in preventing illness, disability, and death has been well documented. Major trauma is injury that has the potential to cause prolonged disability or death. These conditions lead to chronic disability and reduced life expectancy. He had dyslexia prior to it being recognised as a learning disability. Reading disorder is the most common learning disability. Fonasa costs vary depending on income, disability or age. Both are associated with increased risk of death or disability. Various terms were used to attempt to classify individuals with varying degrees of intellectual disability. Various countries have defined statutory limits for poor visual acuity that qualifies as a disability. Brain herniation can cause severe disability or death. These regulations serve to discourage discrimination based on race, color, religion, sex, age,disability, etc. Chronic hives can be difficult to treat and lead to significant disability. Sacks sometimes faced criticism in the medical and disability studies communities.