18/05/2026
Dementia Before Old Age: What the Numbers Show
Dementia is often linked to older age, but the statistics show that it can also affect younger adults.
Research estimates that up to 9% of all dementia cases begin before the age of 65. This is known as young-onset dementia.
The numbers are important:
• Around 1 in every 12 people living with dementia may be under 65 years old
• Globally, this represents millions of individuals in their working and family-building years
• Because symptoms appear earlier, young-onset dementia is often misdiagnosed or overlooked
This means dementia can affect:
• People who are still employed and working
• Parents raising children and supporting families
• Younger adults whose symptoms may not immediately be recognized as dementia
In South Africa, these numbers matter because many families may not expect dementia in a younger person when changes in memory, behaviour, communication, or decision-making begin to appear.
At enABLE FOUNDATION South Africa, we believe dementia awareness must include all age groups — not only older adults.
The earlier dementia is understood, the earlier people can receive support, understanding, and care.
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