The average age for cataract surgery is approximately 73 to 75 years old. But cataracts can occur in the 30s, 40s, and 50s. Of course the older the patient gets the more common the cataracts.
Two neurotransmitters seem to play a role in Alzheimer's Disease: acetylcholine and glutamate. Acetylcholine (ACh) activates muscles and helps with arousal, short-term memory, and learning. Individuals with AD have low levels of ACh.
Aggression can be caused by many factors including physical discomfort, environmental factors and poor communication. If the person with Alzheimer's is aggressive, consider what might be contributing to the change in behavior. The main cause of behavioral symptoms associated with dementia is the progressive deterioration of brain cells, but other factors â such as pain â also can cause symptoms or make symptoms worse.