Risk unknown 60%
Potentially modifiable
40%
7%
8%
3%
2%
5%
4%
4%
2%
2%
%
1%
1%
1%
Later life
Diabetes Air pollution Physical inactivity
Social isolation Depression
Smoking
Hearing loss Percentage reduction in
Newly-identified risk factors
dementia prevalence if this risk factor is eliminated
Less education
Traumatic brain injury Hypertension
Alcohol
>21 units per week Obesity
Midlife Early life
The best science for better lives
Livingston G, Huntley J, Sommerlad A, et al. Dementia prevention, intervention, and care: 2020 report of the Lancet Commission. The Lancet 2020.