Alzheimer’s disease can range from mild to severe as per the severity of sign & symptoms. The scale ranges from a state of mild impairment, through to moderate impairment, before eventually reaching severe cognitive decline.

Mild Alzheimer’s disease :

People with mild Alzheimer’s disease develop memory problems and cognitive difficulties that may include the following:

• • Taking longer than usual to perform daily tasks.
  • Difficulty handling money or paying the bills.
  • While performing fine motor tasks such as writing, drawing, or dressing, certain movement coordination and planning difficulties may be present.
  • Wandering and getting lost.
  • Experiencing personality and behavior changes, such as getting upset or angry more easily, hiding things, or pacing.
  • Difficulties with language. Language problems are mainly characterized by a shrinking vocabulary and decreased word fluency, leading to a general impoverishment of oral and written language

Moderate Alzheimer’s disease :

In moderate Alzheimer’s disease, the parts of the brain responsible for language, senses, reasoning, and consciousness are damaged. This can lead to the following symptoms:

• • Greater memory loss and confusion.
  • Speech difficulties become evident (inability to recall vocabulary, which leads paraphasias)
  • Reading and writing skills are progressively lost.
  • Difficulty recognizing friends or family.
  • An inability to learn new things.
  • Difficulty performing tasks with several stages, such as getting dressed
  • Difficulty coping with new situations
  • Impulsive behavior
  • Hallucinations, delusions, or paranoia.

Severe Alzheimer’s disease :

In severe Alzheimer’s disease, plaques and tangles are present throughout the brain, causing the brain tissue to shrink substantially. This can lead to:

• • An inability to communicate. Language is reduced to simple phrases or even single words, eventually leading to complete loss of speech.
  • Extreme apathy, exhaustion and aggressiveness can still be present.
  • Muscle mass and mobility deteriorates.
  • Dependency on others for care.
  • Being unable to leave bed all or most of the time.