ARPA-H Announcement Seeks Research Projects in Brain Regeneration
Dan Lewis Foundation
The word arpah is written in blue letters on a white background.

On July 10, 2025, the Advanced Research Projects Agency for Health (ARPA-H) announced a major initiative titled Functional Repair of Neocortical Tissue or FRONT. The announcement states “FRONT will pioneer a curative therapy for the more than 20 million adults in the US living with chronic neocortical brain damage from neurodegeneration, stroke, trauma, and other causes, which costs the country an estimated $800 billion per year. Worldwide, more than 200 million people live with debilitating after-effects of brain damage.”



A set of informational meetings about this program and a due date for outlines of potential proposals have been set for August. Full proposals are due by September 25, 2025. Complete instructions, specifications, and expectations are delineated in the ARPA-H   FRONT announcement. The FRONT announcement includes a clear expectation that the successful brain regeneration methods that are discovered will be used in clinical trials with persons with brain injury by the fifth year of the program.


The DLF lauds ARPA-H for initiating this program. We are discussing possibilities for playing a supportive role as proposals develop. This exciting program is congruent with the original overarching goals of the DLF and confirms the validity of its mission.

Two women embrace, comforted. A man watches from a separate chair. Interior, daytime.

What Does “Ambiguous Loss” Mean?

By Hal Lewis • December 5, 2025
My daughter, currently nearing completion of a graduate program in counselling, recently introduced me to the term “ambiguous loss”. This term applies to a loss that is unclear and lacks certainty, leaving family members and close friends feeling stuck because it is so difficult to mourn or find closure. One type of ambiguous loss is when the person is physically present but psychologically absent because their personality, memory, cognition, or emotional connection has been altered. Examples might include a family member with dementia, a progressive disease, a severe emotional disorder, or substantial brain injury. A second type of ambiguous loss is when the person is psychologically present but physically absent. This could include a missing person due to a natural disaster, a long- term incarceration, a kidnapping, or severe estrangement from the family. This type of loss can lead to intense confusion, frozen grief, and a prolonged sense of helplessness.
Marchell smiling, sitting on a couch, holding notebooks

Marchell’s Story

By Dan Lewis Foundation • December 2, 2025
Marchell is an engaging and energetic middle-aged man who was enthusiastic about being interviewed for the DLF newsletter. He is an activist working to promote the rights and well-being of persons in the brain injury community, with a particular emphasis on helping persons with brain injury who are incarcerated or have been released from prison. Marchell is a successful businessman, proud of the company he co-founded--the Association of Young Business Owners (AYBOS), a marketing company in the Denver, Colorado area. He also works for Well Power (Denver’s Mental Health Center system) as a Zero Suicide Certified Peer and Family Specialist.  Marchell is clearly a man on the move to get a lot of positive things done. But this wasn’t always the case. Marchell spent much of his younger adult life incarcerated himself for a variety of crimes including robbery and assault. He had a history of recidivism following multiple releases.