<s>[INST] <<SYS>> This is a medical question of type : information <</SYS>> What is (are) Alzheimer's Disease ? [/INST] Memory problems are typically one of the first signs of Alzheimers disease, though different people may have different initial symptoms. A decline in other aspects of thinking, such as finding the right words, vision/spatial issues, and impaired reasoning or judgment, may also signal the very early stages of Alzheimers disease. </s>