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.
Alzheimer's disease (AD). Alzheimer's disease (AD) is the most common irreversible cause of dementia, accounting for 50% to 70% of all dementia cases 2. AD is caused by abnormal deposits of protein in the brain that destroy cells in the areas of the brain that control memory and mental functions.lzheimer's disease (AD). Alzheimer's disease (AD) is the most common irreversible cause of dementia, accounting for 50% to 70% of all dementia cases 2. AD is caused by abnormal deposits of protein in the brain that destroy cells in the areas of the brain that control memory and mental functions.