Understanding Dementia

A comprehensive guide to dementia types, causes, prevention, diagnosis, treatments, and caregiving — backed by peer-reviewed research from leading medical journals.

55M+
People Living with Dementia
Projected 152M by 2050
45%
Potentially Preventable
14 modifiable risk factors
2:1
Women to Men Ratio
APOE4 risk 81% higher in women
25yr
Early Detection Window
Blood tests detect disease decades early

Explore by Topic

Navigate through comprehensive sections covering everything from molecular mechanisms to caregiver support.

Evidence Strength Ratings

Every major claim includes an evidence strength rating based on the quality and consistency of the underlying research.

Strong EvidenceModerate EvidenceWeak EvidenceSpeculative

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If you or someone you love is affected by dementia, support is available 24/7.