Mad Cow Disease and Variant Creutzfeldt-Jakob Topic Guide
Mad Cow Disease and Variant Creutzfeldt-Jakob Disease: Mad cow is an infectious disease in the brain of cattle. Variant Creutzfeldt-Jakob disease is the human form of mad cow disease. Symptoms and signs include muscle spasms, lack of muscle control, and worsening problems with memory. There are no effective treatments.
Sleep: Understanding the Basics Sleep is defined as a state of unconsciousness from which a person can be aroused. In this state, the brain is relatively more responsive to internal stimuli than external stimuli.