Aphasia is a language disorder caused by damage in a specific area of the brain that controls language expression and comprehension. Aphasia leaves a person unable to communicate effectively with others.
When something goes wrong with the muscles that direct swallowing, it’s called dysphagia and it can lead to aspiration—food or other material entering the airways or lungs.
Learn what do do if you have an injury to the head, scalp, skull or brain.
Multiple sclerosis (MS) is a disease of the brain and spinal cord, where the protective covering (myelin) on nerves in the brain and spinal cord is damaged, causing messages traveling along affected nerves to slow or stop.
Stroke - where a blood vessel in the brain is blocked or bursts - is a serious condition that requires clinical care by a physician or other health care professional; brain damage can occur within minutes of having a stroke.
A concussion can be caused by a direct blow to the head, neck, face or somewhere else on the body with the force being transmitted to the head. This may cause you to lose consciousness – be "knocked out" - but not always.
You may have a voice disorder if you have a problem with pitch, volume, tone and other qualities of your voice. These problems occur when your vocal cords don't vibrate normally.