Does alzheimer's delete your memory? how does it affect your memory?

Theory: This is a multi-neurotransmitter deficiency disease, and destroys the ability of nerve-nerve intercommunication and loss of ability to learn new facts and tasks, and progressive loss of prior abilities. This is primarily due to soluble amyloid toxicity and cellular damage associated with neurofibrillary tangles.

Short term deficit: Alzheimer's disease affects mainly short-term memory. People cannot remember what happened 5 minutes ago but still remember what happened 50 years ago.