Down Syndrome and Alzheimer's: A 90% Lifetime Risk Crisis

People with Down syndrome face a far greater risk of Alzheimer’s disease than the general population. The Alzheimer’s Association estimates their lifetime risk could reach as high as 90%. This stark contrast highlights the unique challenges faced by this group and their families. Decades ago, individuals with Down syndrome often lived only into their 30s. Alzheimer’s would frequently develop around that age. Improved healthcare has since extended their lifespans, but the disease still poses a major threat.

Brain changes linked to dementia can start much earlier in people with Down syndrome, sometimes in their 40s. Rudolph Vincent Perez, now 56, has lived with the condition his whole life. His sister, Gina El Hassan, first noticed warning signs years ago.

Rudolph once loved music and dancing. Now, he forgets where things belong and has pulled back from activities he used to enjoy. His close bond with Gina remains strong, but the changes in his behaviour have been clear. The lifetime risk of Alzheimer’s for the general population is around 20% for women and 10% for men. For people with Down syndrome, the risk is vastly higher. Early brain changes and symptoms like memory loss can appear decades sooner than in others.