Welcome to the seventh season of the Dementia Researcher X ISTAART PIA Relay Podcast. Across six episodes, leading early career and senior researchers hand the mic from one ISTAART PIA to the next, giving you an honest, peer-to-peer tour of where dementia research is actually heading, from wearables and biomarkers to policy and trial design, in the run-up to AAIC.

Sleep might be one of the earliest windows we have into brain health, and Dr Vanessa Young thinks the way we measure it is about to change. Fresh from finishing her PhD in May, Vanessa is a postdoc at the Glenn Biggs Institute and Communications Chair of the Technology and Dementia PIA. She studies sleep and the ageing brain, where the relationship seems to run both ways: as dementia develops, sleep gets worse, and poor sleep may feed back into the disease. With host Dr Carla Abdelnour, she gets into digital biomarkers, why wearables let you capture sleep continuously at home rather than in a one-off sleep study, and the move from wearables to "nearables", bed sensors and room radar that ask nothing of the participant at all. They also cover the analysis headache that comes with years of continuous data, the equity problem when a study needs home Wi-Fi, and what the PIA has planned for its full-day AAIC preconference on AI.

Takeaways

• Sleep and dementia feed each other, so sleep is worth studying as somewhere we might actually step in and help.
• Wearables capture sleep night after night at home, which reaches people who live nowhere near a big sleep centre.
• The field is shifting from wearables to "nearables", sensors in the mattress or radar in the room, to cut participant burden and bias.
• Years of continuous data brings its own problem: telling meaningful signal apart from background noise.
• If a study needs Wi-Fi to send its data, it quietly excludes people, so digital equity has to be designed in.

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The Alzheimer’s Association International Society to Advance Alzheimer’s Research and Treatment (ISTAART) convenes the global Alzheimer’s and dementia science community. Members share knowledge, fuel collaboration and advance research to find more effective ways to detect, treat and prevent Alzheimer’s and other dementias. Professional Interest Areas (PIA) are an assembly of ISTAART members with common subspecialties or interests.

There are currently 30 PIAs covering a wide range of interests and fields, from Neuroimaging to Diversity and Disparities and everything in between.

Find out more at https://istaart.alz.org/

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