confuse

some confuse people what r u doing

Delirium

Delirium is characterized by disorientation, recent memory loss, and a clouding of consciousness. A delirious person has difficulty focusing, sustaining, or shifting attention. These signs arise suddenly, within several hours or days. They fluctuate over the course of a day and often become worse at night, a condition known as sundowning. The duration of these signs is short-rarely more than a month. Delirious patients are often agitated or frightened. They may also experience disrupted sleep-wake cycles, incoherent speech, illusions, and hallucinations.

The signs of delirium usually follow a common progression. Disorientation about time is typically the first sign to appear. if asked, the patient does not know the time of day or the current year or says it is 6:00 A.M. when it is 6:00 P.M. As the delirium worsens, the person's orientation to place becomes disrupted for example, the patient may think she is in her childhood home when she is actually in the  hospital. If undetected, the delirium progresses, and the person's  orientation to familiar people becomes distorted.

Causes of Delirium

There are may causes of delirium. For most patients, an underlying medical, surgical, chemical, or neurological problem causes the delirium. Delirium can be caused by a stroke, congestive heart failure, an infectious disease, a high fever, or HIV infection. Drug intoxication or withdrawal can lead to delirium. Other possible causes include fluid and electrolyte imbalances, illicit drugs, medications, and toxic substances. Delirium is probably the most common psychiatric syndrome found in a general hospital, particularly in older people.

Alzheimer

The most common cause is Alzheimer's disease. Dementia due to Alzheimer's disease is the most
common type of dementia and accounts for 55 to 80 percent of all dementias. Alzheimer's demeforentias typically begin with mild memory loss, but as the disease progresses, the memory loss and disorientation quickly become profound. About two-thirds of alzheimer's patients show psychiatric symptoms, including agitation, irritability, apathy, and dysphoria. As the disease worsens, people may become violent and experience hallucinations and delusions.

The disease usually begins after the age of 65, but there is an early onset type of Alzheimer's disease that tends to progress more quickly than the late-onset type, which develops after age 65. On average, people with this disease die within 8 to 10 years of its diagnosis, usually as a result of physical decline or independent diseases common in old age, such as heart disease.