Final answer:
The early stage of Alzheimer's disease is marked by memory problems and mild confusion. Symptoms like incontinence, agitation, and wandering behavior generally occur in the moderate stage. Research is ongoing to enable earlier detection and treatment of AD.
Step-by-step explanation:
The early stage of Alzheimer’s disease (AD) is characterized by memory problems and mild confusion. Patients may experience disruptive memory loss, difficulty with planning and executing tasks, and confusion about time or place. These cognitive deficits reflect the beginning of brain changes that are not yet severe. It is important to note that these symptoms are more serious and persistent than what might be expected from typical age-related forgetfulness.
In contrast, increased sleeping, incontinence, agitation, and wandering behavior are symptoms that tend to appear in the moderate stage of AD, where more extensive damage to the brain occurs, affecting emotional regulation, social behavior, and higher-level thought. As the disease progresses to severe AD, patients often become fully dependent on others and lose control over basic functions, which ultimately can lead to death.
Researchers are focused on finding methods for earlier detection and treatment of AD. These include investigating brain imaging techniques, looking for biomarkers in bodily fluids, and recognizing subtle symptoms like changes in movement or loss of smell that may precede more noticeable cognitive changes. Early diagnosis is crucial for providing treatment and planning for the care of individuals with AD.