Elders classically are framed as people who are inevitably getting weaker, losing muscle and bone mass, cognitive capacity, and inevitably requiring care to manage simple "activities of daily living" such as walking, feeding, toileting and bathing. These effects limit their capacity to live independently and healthily in their own homes. To address this decline, research in even just the past five years has been looking for new molecules and therapies to slow or reverse aging, to provide if not longer life, then better quality of life throughout the life course. While these advances in science and technology promise wonders (for those who will be able to afford them), there is already established science that demonstrates how we can all improve our life quality over our lifespan. This same science can, today, improve the life quality of our elders - starting these interventions at any age. It's building strength:a well understood, human practice. No technology is required to build and maintain strength; only to move against gravity. Repeatedly. Research has repeatedly shown that resistance training for elders can improve quality of life while mitigating if not eliminating age associated co-morbidities. And yet, for all its proven effective, cheap - even free - benefits for healthful longevity, many elders are simply too weak to take care of themselves. According to a 2019 report from AgeUk on the State of Elder health, 15% of those aged 65-69, rising to 1 in 3 citizens over 85 in the UK require care. Some of the well-documented challenges to strength building are that, unlike a pill or garment or augmentation, to achieve the benefits of strength, one has to do the work oneself, actively. That takes time, effort, as well as the knowledge, skills and practices to support it. Mustering the effort can be even harder to achieve when one is already feeling weak, recuperating from an injury, a hospital stay, or from loneliness of isolation. The research in this project is specifically designed to address the challenges that keep elders from actively engaging in strength work. Our approach is to co-create interactions to help build the knowledge skills and opportunities to practice to build and preserve the strength needed to maintain healthful independence at home. Our approach is simple: design interactive technology and gestures to leverage what we - including elders - do every day that is already strength work: stand, sit, grip, pull, push, reach, balance - and translate these into activities for building strength. We call it this novel protocol "do it twice." Stand from sitting? That's strength. Do it twice. That's strength building - and that supports the knowledge skills and practice of "elder athletes" building capabilities rather than requiring assistance. Our approach is interdisciplinary: experts in Human Computer Interaction, Sensors and Physiotherapy, developing novel, affordable interactive technologies to make strength practice accessible effective and enjoyable with support to guide these activities, reflect progress, and share with friends. We call the approach "incidental interaction for everyday strength." So far, we have tested the approach for feasibility. In this small project, with our partners in sustainable, assisted living housing, NHS Trusts, professional therapy and coaching, and with participating elders as co-designers, we will be refining the interaction, the sensors and the exercise protocols. We will be able to tune our work at each stage to ensure best engagement. In three phases from design, to testing, to in-home evaluations we will together be validating the accessibility and efficacy of our approach. By realizing with this project the potential our preliminary work indicates and that our partners anticipate, we will contribute a new affordable breakthrough approach to help transform elder health and care, to enable longer, stronger elder independence@home.

The physiological and cognitive impacts of extreme temperatures are known in general and mostly for healthy populations, but little is known about how impacts differ across the diversity of the UK population; in particular, those with multiple health conditions, including neurological, who are likely to be the most impacted, and for which interventions (e.g. green spaces) are poorly targeted or non-existent. Furthermore, we do not have tools to integrate available data to understand temperature-health risks nationally and at the necessary individual and household level, and therefore how to target interventions. More broadly, the evidence is lacking to guide policy on the coupled challenges of health inequalities, urban planning and climate change mitigation/adaptation, under uncertain futures of climate and demographic change. Increases in heatwaves are a robust aspect of climate change, with associated increases in health-related deaths. Cold-related mortality has declined with overall warming, yet still far outweighs the increase in heat-related deaths, and the overall burden of cold-related illness and mortality will remain high with an ageing population. Most research on health outcomes has focused on excess mortality rates and limited to broad vulnerability groupings. Health outcomes are, however, much more nuanced, being related to both physical and mental health and exacerbated by underlying conditions including neurological and mental ill health, with exposure related to context specific temperature-humidity thresholds. Therefore, there are significant gaps in our understanding of health risks (including long-term outcomes) for the most vulnerable, and how this relates to the interplay between variability of temperature hazards and outdoor/indoor exposure as driven by socio-economic gradients and mobility. We therefore envisage developing new knowledge and tools for precise risk assessment and targeted interventions, focused on disproportionately impacted groups. By doing so, we will transform our understanding of the drivers of inequalities in temperature related health outcomes and propose using this to inform policy on levelling up and pathways to climate targets. We will realise our vision through an ambitious but feasible, highly multidisciplinary project that is necessary to address this complex problem. Our aim is to transform our understanding of the risk of temperature impacts on health outcomes for vulnerable populations of England and Wales with particular focus on health inequalities, currently and for future scenarios, and identify environmental solutions, directly addressing the overarching funding call objective. Our approach is multi-scale, with high granularity in both space and time: a) linking national scale risk assessment with detailed urban case studies to understand risks at the level of streets/buildings and vulnerable groups; and b) identifying how risks change with future changes in climate, demographics, mobility and health status. National scale assessment will reveal how extremes evolve across climatic gradients and land types, and we will explore the diversity of health outcomes and identify landscape configurations and socio-economic factors that are likely to lead to higher risks, and therefore potential mitigations that are resilient to future change. Community engagement will tease out the nuances of impacts and acceptability of environmental and community-based interventions. This will feed back to the national scale to inform on mitigation, via risk reduction tools for early warning, planning and policy. Our approach will provide a far more nuanced, informed and precise risk assessment than currently exists that will allow targeted interventions to be identified, providing risk reduction where most needed.