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

People with Down syndrome face a far higher risk of Alzheimer’s disease than the general population. Rudolph Vincent Perez, a 56-year-old man with Down syndrome, is now showing early signs of the condition. His sister, Gina El Hassan, first noticed changes in his behaviour a decade or more ago. Gina El Hassan remembers her brother as someone who loved music and dancing. Over time, she saw him begin to forget where things belonged. He also started to pull back from activities he once enjoyed.

Medical experts say brain changes linked to dementia can appear early in people with Down syndrome, often around age 40. Decades ago, many with the condition lived only into their 30s before Alzheimer’s often developed. Improved healthcare has since extended their lifespans.

The Alzheimer’s Association reports a lifetime risk of the disease as high as 90% for people with Down syndrome. This is far above the general population, where women have about a 20% risk and men around 10%. Rudolph Vincent Perez remains close to his sister as he faces these challenges. His case highlights the high likelihood of Alzheimer’s among those with Down syndrome. Early detection and support remain critical for families dealing with the disease.