Allostatic Load and Health (AL-Health) Working Group

Allostatic load and healthy aging. The ways that long-term stress may shape brain aging, chronic pain, and mental health are complex and still not fully understood. For some people, chronic stress and allostatic load may contribute to changes in memory and thinking, increased sensitivity to pain, or symptoms of anxiety and depression, especially when stress is frequent and recovery is limited. At the same time, people’s experiences and biology differ, so the effects of stress are unlikely to look the same for everyone. Understanding who is most vulnerable, why, and when these changes begin is a key step toward better prevention and earlier support.

Allostatic load and cancer risk. How long-term stress affects cancer risk is still not well understood. While research has found that higher allostatic load may be linked to who develops cancer and how people fare after a diagnosis, significant gaps remain. The AL-Health Working Group is focused on addressing many of the unanswered, pressing questions surrounding allostatic load, cancer risk, and cancer survival.

Defining allostatic load. Researchers face two competing challenges in how they measure allostatic load. On one hand, the field needs more consistency so results can be compared across studies and combined to draw stronger conclusions. However, studies that use different sets of biomarkers to measure allostatic load can strengthen the evidence that allostatic load affects human health – because similar findings across different measurement approaches suggest the relationship is real and not dependent on any single definition or scoring method. Part of the goal of the AL-Health Working Group is to test and develop recommendations for how to measure allostatic load in different datasets and patient populations.