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Transient global amnesia is an episode of confusion that comes on suddenly in a person who is otherwise alert. This confused state isn't caused by a more common neurological condition, such as epilepsy or stroke.
Memory loss: When to seek help. A number of conditions — not only Alzheimer's disease — can cause memory loss in older adults. Getting a prompt diagnosis and appropriate care is important. By Mayo Clinic Staff
Anyone who experiences unexplained memory loss, head injury or confusion requires immediate medical attention. People with amnesia may not know where they are or be able to seek medical care. If someone you know has symptoms of amnesia, help the person get medical attention.
Delirium and dementia may be hard to tell apart, and a person may have both. Someone with dementia has a gradual decline of memory and other thinking skills due to damage or loss of brain cells. The most common cause of dementia is Alzheimer's disease, which comes on slowly over months or years. Delirium often occurs in people with dementia.
The condition causes memory loss and trouble with language and judgment, but it doesn't affect daily activities. People with mild cognitive impairment, also known as MCI, may be aware that their memory or mental ability has changed.
Dementia generally involves memory loss. It's often one of the early symptoms of the condition. But having memory loss alone doesn't mean you have dementia. Memory loss can have different causes.
Anyone who experiences sudden loss of memory for all events leading up to the present needs emergency medical care. Call 911 or your local emergency number immediately. If a friend or family member develops these symptoms in your presence, go with him or her to the hospital.
Loss of balance or unsteadiness. Losing your balance while walking, or feeling imbalanced, can result from: Vestibular problems. Abnormalities in your inner ear can cause a sensation of a floating or heavy head and unsteadiness in the dark. Nerve damage to your legs (peripheral neuropathy). The damage can lead to difficulties with walking.
Temporal lobe seizures begin in the temporal lobes of the brain. These areas process emotions and are important for short-term memory. Symptoms of a temporal lobe seizure may be related to these functions. Some people have odd feelings during the seizure, such as joy, deja vu or fear.
Difficulty expressing wants and needs can result in embarrassment, frustration, isolation and depression. Other problems may occur together, such as more difficulty moving around and problems with memory and thinking.