Recent studies are changing our understanding of the brain and offering new hope for people with Alzheimer’s disease.
What if some abilities affected by dementia are not gone forever, but just out of reach for now?
For millions of people living with Alzheimer’s and their families, dementia means progressive changes in memory, communication, movement and independence. As the disease advances, it can seem as though more and more of the person’s abilities disappear.
But scientists are now investigating whether psychedelic compounds such as psilocybin could change how the brain functions and potentially help unlock pathways that have become difficult to access. The research is early. But the science behind it is compelling enough that researchers are calling for serious investigation.
A Remarkable Case Has Changed the Conversation
In 2026, researchers reported an extraordinary case involving an elderly woman with advanced Alzheimer’s disease following years of severe cognitive and functional decline. After receiving psilocybin-containing mushrooms, researchers observed temporary improvements in several areas, including speech, mobility, independence, social interaction and autobiographical information.
The woman reportedly became more verbally expressive and demonstrated abilities that had appeared severely impaired. This raises a scientifically important question:
Could some abilities remain within the brain but become inaccessible as Alzheimer’s disrupts communication between brain networks?
Why Are Scientists Excited About Psilocybin?
Psilocybin is converted in the body to psilocin, which acts primarily on serotonin 5-HT2A receptors in the brain. Researchers are investigating whether this activity could produce several potentially valuable effects.
1. It may promote neuroplasticity
Neuroplasticity is the brain’s ability to change, adapt and form new connections.
Research suggests psychedelics can stimulate pathways involved in neural plasticity and synaptic remodelling. This has led scientists to investigate whether psychedelic-assisted therapy could potentially help damaged or ageing brains make better use of the neural pathways that remain.
Explore the research on psychedelics and neuroplasticity
2. It dramatically changes brain network communication
Human brain-imaging research has shown that psilocybin can temporarily disrupt and reorganise communication between large-scale brain networks. These changes may help explain how psychedelics produce profound alterations in perception and cognition, and could potentially create a window in which the brain becomes more flexible.
This is particularly interesting in Alzheimer’s, where communication between brain networks is already disrupted.
Read the human brain-imaging research
3. It may influence neuroinflammation
Neuroinflammation is an important area of Alzheimer’s research.
A 2025 scientific review examined evidence that psychedelics influence inflammatory pathways and potentially reduce levels of inflammatory signalling molecules such as TNF-α and IL-6. The same review discussed possible effects on BDNF and neuroplasticity.
Read the research on psychedelics and Alzheimer’s-related inflammation
4. It could potentially improve emotional wellbeing
Depression and anxiety can accompany cognitive decline and significantly reduce quality of life.
Psilocybin is already being investigated for several mental health conditions, and researchers are exploring whether its effects on mood, emotional processing and psychological wellbeing could also benefit people experiencing cognitive impairment.
A 2024 review specifically examined the potential role of psilocybin in Alzheimer’s disease, including its possible effects on neuroplasticity, inflammation, cognition, anxiety and depression.
Read the 2024 Alzheimer’s research review
5. Could This Become a New Approach to Dementia?
The goal is not simply to “get high” or temporarily make someone feel different.
Researchers are investigating whether carefully controlled psychedelic experiences could potentially create a period of increased brain flexibility, possibly allowing the brain to respond differently to therapy, cognitive stimulation, physical rehabilitation and social interaction.
That is one of the most exciting possibilities.
The psychedelic experience itself may be only one part of the treatment. The bigger question is whether it can create a biological window in which the brain is more capable of adapting.
6. The Research Is Early But Worth Watching
The combination of emerging research into neuroplasticity, brain connectivity and inflammation, together with the remarkable 2026 case report, provides a strong scientific reason to investigate further. For people living with dementia and their families, the potential benefits being explored are significant:
• Better access to existing brain function.
• Greater neuroplasticity.
• Potential improvements in mood and emotional wellbeing.
• New possibilities for cognitive and physical rehabilitation.
A completely new way of studying what the brain can still do after dementia has progressed.
The next breakthrough in dementia research may not come from asking only what the brain has lost.
It may come from discovering what the brain still has, and finding new ways to access it. If you or someone you love has dementia, psilocybin microdosing therapy is an area worth exploring.
