This week on DocTalk, veterinarian Dan Thomson talk with Kansas State University Extension feedyard specialist Chris Reinhard, PhD, about heat stress in cattle. Reinhardt notes that cumulative factors including temperature, relative humidity, wind, direct sunlight and the number of consecutive hot days contribute to the risk of heat stress. Reinhardt offers practical advice for monitoring conditions and adjusting management decisions to prevent heat stress. The DocTalk section on BovineVetOnline also houses archives of the program. Previous episodes include discussions of preconditioning calves, parasite control, equine reproduction and low-stress livestock handling.