Having limited strength, vitality, or alertness, including a heightened alertness to environmental stimuli that result in limited alertness with respect to the educational environment. That 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, rheumatic fever, sickle cell anemia, and Tourette syndrome; and adversely affects a child’s educational performance.