While a severe traumatic brain injury can occur without a period of unconsciousness, often there is a period of unconsciousness when the injury is severe. There may also be a period of forgetfulness or amnesia. The CDC reports that nearly half of all persons who are hospitalized for a traumatic brain injury have a disability related to the injury for at least one year after the accident. The effects of the injury can be both short-term and long-term. These include difficulties with cognitive function, motor function, sensation, and emotion. Some common problems include difficulty with attention, thinking, and memory; weakness in the arms and legs; difficulty balancing; clumsiness; and trouble with hearing or seeing. A traumatic brain injury can affect a person’s emotional life, causing depression, impulse control, personality changes, and anxiety. A traumatic brain injury can be disabling and can require prolonged physical/occupational therapy, counseling, and rehabilitation. A person with a traumatic brain injury may find that their life has changed dramatically; they may have problems with work, family, and even routine activities of daily living.