The biology of brain aging
Neurodegenerative diseases involve progressive loss of neurons, driven by misfolded proteins, inflammation and vascular factors. They are not a normal part of aging — but risk rises sharply with age.
The African outlook
Africa's older population is growing rapidly. Without preparation, dementia cases on the continent are projected to multiply several-fold by 2050. Early awareness, diagnosis and caregiver support are critical.
What helps
Cardiovascular health, education, social engagement, sleep and physical activity all reduce risk. These are achievable, low-cost interventions accessible across most communities.
AFRICA FOCUS
Building dementia-literate communities and trained caregivers is urgent groundwork for Africa's coming demographic shift.
Key takeaways
- Dementia is not normal aging — it is brain disease
- Africa's dementia burden is rising rapidly
- Lifestyle factors meaningfully reduce risk
- Caregiver support is as important as clinical care