Memory problems are one of the first signs along with other thinking problems, such as trouble finding the right words or poor judgment.
Mild Alzheimer’s disease
Memory loss worsens and changes in other cognitive abilities are evident, such as getting lost, trouble handling money and paying bills, repeating questions, taking longer to complete daily tasks, poor judgment, losing things or placing them in odd places, mood and personality changes. The disease is often diagnosed at this stage.
Moderate Alzheimer’s
Damage occurs in areas of the brain controlling language, reasoning, sensory processing and conscious thought. Symptoms include increased memory loss and confusion, problems recognizing family and friends, inability to learn, difficulty carrying out new tasks or those with multiple steps, such as getting dressed, problems coping with new situations, hallucinations, delusions and paranoia, impulsive behavior.
Severe Alzheimer’s: People cannot communicate and depend completely on others for their care. Near the end, they may be in bed most or all the time as the body shuts down. Symptoms include: inability to communicate, weight loss, seizures, skin infections, groaning, moaning or grunting, increased sleeping, lack of bladder and bowel control.
Source: U.S. Department of Health and Human Services National Institute on Aging