According to the Mayo Clinic, dementia is a set of symptoms caused by conditions or changes in the brain that affect at least two brain functions severely enough to interfere with daily functioning. Symptoms may include memory loss, difficulty...
The brain, weighing about 3 lbs., is the most complex part of the body. It interprets sensory information, controls behavior, contains the mind and all intelligence, and it is the origin of all movements of the body. Degenerative diseases of the...
Parkinson's disease is one of the most common neurological disorders to affect older people. In patients with Parkinson's, the nerve cells, or neurons, that produce the neurotransmitter called dopamine are destroyed, causing many different...
Dementia itself is not a disease, but a symptom of disease. True dementia is only diagnosed when two or more significant symptoms affect the brain but are not caused by a loss of consciousness. The loss of memory, speaking or language skills are...
Hallucinations are a common symptom in dementia. Some hallucinations are caused by the dementia-causing disease itself, sometimes by medications and sometimes by other conditions. Hallucinations can occur in almost anyone under the right...
Parkinson's disease is a degenerative disorder of the nervous system that impairs motor skills and other functions of the body. Hallmark symptoms of the disease include tremors, slow movement and loss of balance. However, these hallmark symptoms...
A tremor or loss of strength in the hand may be a single event brought on by something as simple as aging or numbness from a temporary lack of blood supply. People who commonly experience hand tremors or who have an inability to grip objects...
A degenerative neurological disease, dementia with Lewy bodies accounts for 20 percent of dementia cases in the United States, according to the Family Caregiver Alliance. Patients with this type of dementia have abnormal structures called Lewy...
Parkinson's disease, classified as a movement disorder, affects at least 500,000 people in the United States, according to the National Institute of Neurologic Disorders and Stroke. Parkinson's disease occurs due to nerve cells in the brain...
A number of symptoms of Alzheimer’s disease are labeled as "psychotic," hallucinations being one of them. Around 18 percent of people with Alzheimer’s disease experience hallucinations, and they are more often reported in people with a...
