Neuroscience In Action:
Mechanisms Behind Alzheimer's Disease
contact
Home
Purpose
Background
How Alzheimer's Disease Affects the Brain
Main Characteristics of Alzheimer's
Causes and Risk Factors
Types of AD
Stages of AD
Stage 1: Preclinical Stage
Stage 2: Early Stage
Stage 3: Early Stage
Stage 4: Early Stage
Stage 5: Moderate Stage
Stage 6: Moderate Stage
Stage 7: Final Stage
Treatments
Sources
Types of Alzheimer's Disease
Early-Onset
This type occurs in people who are in their 40s or 50s
Only 5% of Alzheimer's patients are diagnosed with early-onset
People with Down Syndrome have a higher risk of developing early-onset AD
Early-onset is linked with Chromosome 14
Myoclonus, a form of muscle spasms, is more common in early-onset AD
Late-Onset
This type occurs in people who are 65 years old and older
Most common form of AD
No specific gene associated with its development, most likely environmental factors influence late-onset AD
Lifetime of smoking, drinking, lack of exercise and a healthy diet, diabetes, and traumatic brain injury can contribute to late-onset AD
Stages of AD