Objective This conceptual article proposes a patient-counseling framework that integrates epigenetic aging measures into the Transtheoretical Model (TTM) to support personalized health behavior change. Methods We developed a conceptual model by mapping potentially motivational properties of epigenetic age feedback, including its interpretability, biological science, and modifiability, onto stage-specific behavior-change processes within the TTM. Results The proposed model describes how epigenetic age feedback may be introduced differently across precontemplation, contemplation, preparation, action, maintenance, and relapse phases. Rather than functioning as a stand-alone motivator, epigenetic age is positioned as a complementary tool alongside established approaches such as motivational interviewing, wearable monitoring, and conventional risk assessment. This framework also outlines how repeat measurement may be used selectively to reinforce progress, re-engage patients after slippage, and personalize counseling around behaviors such as physical activity, sleep, nutrition, and stress management. Conclusion Integrating epigenetic age data into stage-matched counseling offers a plausible, patient-centered approach to behavior change, but it remains conceptual and requires empirical evaluation of feasibility, acceptability, and communication effects. Innovation This article frames epigenetic age from a research biomarker into a stage-specific patient education tool and proposes a modified TTM in which repeat biological age assessment is used as a targeted relapse-prevention and re-engagement strategy.
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