1) Cognitive effects of one season of head impacts 2) Topic of the month: Diagnosis of MCI and AD. This podcast for the Neurology Journal begins and closes with Dr. Robert Gross, Editor-in-Chief, briefly discussing highlighted articles from the print issue of Neurology. In the second segment Dr. Howard Goodkin interviews Dr. Thomas McAllister about his paper on cognitive effects of one season of head impacts. Dr. Jennifer Fugate is reading our e-Pearl of the week about Hashimoto encephalopathy. In the next part of the podcast Dr. Jeff Burns interviews Dr. John Morris about preclinical Alzheimer disease. In concluding, there is a brief statement where to find other up-to date patient information and current Patient Page. All participants have disclosures.Dr. Goodkin serves on the scientific board for Tuberous Sclerosis Alliance and CURE; serves on the editorial board for Neurology and Surgical Neurology International; received royalties for an entry in Up-to-date entitled: The choking game and other strangulation activities in children and adolescents and is funded by NIH grants.Dr. McAllister is funded by NIH grants.Dr. Fugate serves on the editorial team for the Neurology® Resident and Fellow Section. Dr. Jeff Burns serves on the editorial board of the Journal of Alzheimer's Disease; has served on a scientific advisory board for the American Academy of Physician Education; has received publishing royalties for Early Diagnosis and Treatment of Mild Cognitive Impairment (Wiley Press, 2008) and Dementia: An Atlas of Investigation and Diagnosis (Clinical Publishing, 2007); serves on the speakers' bureau for Novartis; has served as a consultant for Medacorp Consulting, Johnson County Clinical Trials, and PRA International; receives research support from Elan Corporation, Janssen, Wyeth, Pfizer Inc, Danone, and the Dana Foundation; and has served as an expert witness in legal proceedings regarding competency.Dr. Morris serves on scientific advisory boards for Eisai Inc., Esteve, Janssen Alzheimer Immunotherapy Program, GlaxoSmithKline, Novartis, Otsuka Pharmaceuticals Co., Ltd., and Pfizer Inc; serves on the editorial advisory board of Annals of Neurology; receives royalties from the publications of the books Mild Cognitive Impairment and Early Alzheimer's Disease, Dementia, Handbook of Dementing Illnesses, 2nd edition and for an editorial in Lancet Neurology; and receives research support from Janssen Alzheimer Immunotherapy Program and Pfizer Inc.