All kinds. I've represented clients with a wide variety of impairments, including but not limited to: AIDS, ADHD, Alzheimer's disease, anxiety, arthritis, Asperger Syndrome, asthma, autism, back surgery, bi-polar disorder, burns, cardiovascular disease, cancer (including brain cancer), carpal tunnel syndrome, cervical radiculopathy, chronic fatigue (and chronic fatigue syndrome), chronic pain, coronary artery disease, COPD, Crohn's Disease, CRPS, cyclic vomiting disorder, deep vein thrombosis, degenerative disk disease, depression, diabetes, diverticulitis, epilepsy, fibromyalgia, fractures, GERD, heart attack, heart disease, hepatitis, herniated discs, hypertension, immune deficiency syndrome, kidney disease, lumbar radiculopathy, lupus, leukemia, Lyme's Disease, migraine headaches, multiple sclerosis, myocardial infarctions, neck surgery, obesity, panic disorder, Parkinson's disease, post-traumatic stress disorder or PTSD, RSD, rheumatoid arthritis, schizophrenia, seizures, stroke, subdural hematoma, traumatic brain injury, vertigo, vomiting disorder, and so on.