Alzheimer’s is one of those few diseases that is mainly caused due to the abnormal protein buildup in your brain cells. These are mostly known as tau protein and amyloid protein which lead to the death of brain cells.
In the human brain there are 100 billions nerve cells along with other cells. These work together to enable communications which are required to perform the most common functions like learning, remembering, planning and thinking. The tangles and plaques formed in the nerve cells restrict from transmitting information therefore resulting in showing symptoms.