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Britain’s Youngest Dementia Patient Dies at 24 After Rapid Decline

His family has donated his brain to researchers at Addenbrooke's Hospital to drive progress against early-onset frontotemporal dementia.

Overview

  • Andre Yarham died on December 27, 2025, in hospice care after a hospital-treated infection led to a rapid deterioration.
  • Diagnosed a month before his 23rd birthday, he had frontotemporal dementia caused by a protein mutation.
  • An MRI in 2023 led clinicians to say his brain resembled that of a 70-year-old despite his early 20s.
  • His condition advanced quickly in 2025, prompting a move to a nursing home in September and subsequent end-of-life care.
  • His mother says the family donated his brain for research, reported to Addenbrooke's in Cambridge, and urged greater awareness of early-onset dementia that affects about one in 20 dementia cases, with only around 0.1% diagnosed under 65.