Gilbert, who is chatty and eager to laugh, was diagnosed with Alzheimer’s disease in late 2023, soon after lecanemab, a new therapy designed to slow the disease’s progress, became available.

Alzheimer's disease, the most common cause of dementia, is a neurodegenerative condition that can start developing 20 years before symptoms appear. It is the seventh leading cause of death in the U.S.

Alzheimer’s blood tests may one day allow patients and their doctors to track their individual progress in reducing risk, according to a new study.