Other health impairments are an umbrella term that include a range of conditions. The OHI defines it as “having limited strength, vitality, or alertness, including a heightened alertness to environmental stimuli, that results in limited alertness with respect to the educational environment, that— (a) is due to chronic or acute health problems such as asthma, attention deficit disorder or attention deficit hyperactivity disorder, diabetes, epilepsy, a heart condition, hemophilia, lead poisoning, leukemia, nephritis [a kidney disorder], rheumatic fever, sickle cell anemia, and Tourette syndrome; and (b) adversely affects a child’s educational performance.”