Alzheimer's Disease is the most common dementia type with over 50% of cases reported. Dementia types will share common themes but each one does have slightly different factors that effect the brain.

According to Dr. Harvey Gilbert, MD of the Gilbert Guide, some of the most common types of dementia and their causes are:

1. Vascular Dementia

This type of dementia is the second most common. It is caused by poor blood flow to the brain, depriving brain cells of the nutrients and oxygen they need to function normally. Vascular dementia can be caused by any number of conditions which narrow the blood vessels, including stroke, diabetes and hypertension.

2. Mixed Dementia

Sometimes dementia is caused by more than one medical condition. Most commonly, mixed dementia is caused by both Alzheimer's and vascular disease.

3. Dementia with Lewy Bodies (DLB)

Sometimes called Lewy Body Disease, this type of dementia is characterized by abnormal protein deposits called Lewy bodies that develop in nerve cells in the brain stem. This disrupts the brain's ability to function normally and impairs cognition and behavior. It can also cause tremors and is often linked with Parkinson's Disease and dementia. It is not reversible and there is no known cure.

4. Parkinson's Disease Dementia (PDD)

Parkinson's disease is a chronic, progressive neurological condition, and in its later stages can affect cognitive functioning. Not all people with Parkinson's disease will develop dementia, however. This type of dementia is also a lewy body dementia. Symptoms include tremors, muscle stiffness and speech problems. Reasoning, memory, speech, and judgment are also usually affected.

5. Frontotemporal Dementia

Pick's disease is the most common and recognized form of frontotemporal dementia. It is a rare disorder which causes damage to brain cells in the frontal and temporal lobes. This affects the individual's personality significantly, usually resulting in a decline in social skills, along with emotional apathy. Unlike other dementias, Pick's disease usually results in behavior and personality changes occuring before memory loss and speech problems.

6. Creutzfeldt-Jacob Dementia (CJD)

A degenerative neurological disorder, CJD is also known as "mad cow disease". The incidence is very low, occurring in only about one in one million people. There is no cure. Caused by viruses, CJD progresses rapidly, usually over a period of several months. Symptoms include memory loss, speech impairment, confusion, muscle stiffness and twitching, and a general lack of coordination, which makes the individual susceptible to falls. Sometimes blurred vision and hallucinations also occur with this form of dementia.

7. Normal Pressure Hydrocephalus (NPH)

Normal pressure hydrocephalus involves an accumulation of cerebrospinal fluid in the brain's cavities. When this fluid does not drain as it should, the associated build-up results in added pressure on the brain, interfering with the brain's ability to function normally. Individuals with dementia caused by normal pressure hydrocephalus often experience problems with ambulation, balance and bladder control, as well as cognitive impairments involving speech, problem-solving abilities and memory.

8. Huntington's Disease

Huntington's disease is an inherited progressive dementia that affects the individual's cognition, behavior and movement. Symptoms include memory problems, impaired judgment, mood swings, depression and speech problems (especially slurred speech). Delusions and hallucinations may also occur. Individuals with Huntington's disease may also experience difficulty walking, and uncontrollable jerking movements of the face and body

9. Wernicke-Korsakoff Syndrome

Wernicke-Korsakoff syndrome is caused by a vitamin B1 (Thiamine)deficiency and often occurs in alcoholics, although it can also result from malnutrition, cancers, abnormally high thyroid hormone levels, long-term dialysis and long-term diuretic therapy (used to treat congestive heart failure). The symptoms include confusion, permanent gaps in memory, and impaired short-term memory. Hallucinations may also occur. If treated early by supplement, this dementia can be reversed.

10. Mild Cognitive Impairment (MCI)

Dementia can be due to illness, medications and a host of other treatable causes. With mild cognitive impairment, an individual will experience memory loss, and sometimes impaired judgment and speech, but they are usually aware of this decline. These problems usually don't interfere with the normal activities of daily living. Individuals with mild cognitive impairment may also experience behavioral changes that involve depression, anxiety, aggression and emotional apathy. This is often due to the awareness of and frustration related to his or her condition.

Read about health portal Also read about home remedies for acidity and home remedies for anemia.

To add a comment please login by clicking here