--- title: "TROI: Time Return On Investment" description: "" canonical_url: "https://fruitfulyears.com/troi/" date_published: "2026-10-26T05:07:01+00:00" date_modified: "2026-10-26T05:07:01+00:00" updated_at: "2026-10-26T05:07:01+00:00" --- # Your exercise time, multiplied in potential life A lasting movement habit could return several times the time you invest. Your future self will thank you, for a long, long time! [Explore the research scenario ↗](https://fruitfulyears.com/troi/#longevity) Potential TROI Minutes · modeled longevity **1**activity minute **×6.3**sustained-habit research model **≈6.3**potential added life-minutes Time invested **1 minute** ** Modeled longevity return **≈6.3 minutes** Each full block = 1 minute US adults 40+ · Least-active → second quarter · sustained activity increase. Not a walking or stair session earning rate. 1 · Today’s investment ## 0 active minutes [Log your next movement ↓](https://fruitfulyears.com/troi/#movementLog) 2 · The habit you’re building ## 0 active minutes this week Every session contributes to your ongoing pattern. 3 · Potential TROI Minutes ## What could the habit return? Explore the research behind the potential longevity payoff. [Explore the research scenario ↓](https://fruitfulyears.com/troi/#longevity) Published sustained-habit scenario ## Small commitments. More life to look forward to. Potential TROI Minutes · modeled longevity Veerman · Least-active → second quarter **≈376** Potential TROI Minutes · per 60 additional walking-equivalent minutes The change: about 28.5 extra walking-equivalent minutes each day, maintained over time. An illustration of sustained habits, not a personal lifespan prediction. No separate walking or stair-climbing rate is assigned. [Build your habit · log movement ↓](https://fruitfulyears.com/troi/#movementLog) Change scenario Explore the potential return. This reference does not change your activity logs or friends challenge. Published model **Veerman**Ratio illustration · follows entered duration **Microlives**Fixed reference · first 20 daily moderate-exercise minutes The logging card illustrates the selected research ratio at your entered duration; it does not estimate the effect of your workout. Explore a population scenario ### Assumptions and source 95% uncertainty range: 5.4–7.1 life-minutes per activity minute. Veerman et al. (2024/25): US adults 40+, total activity expressed as 3-mph walking. Assumes sustained change and causal interpretation of observational associations. Population estimates, not personal predictions; the range is model uncertainty. [Read the published model ↗](https://doi.org/10.1136/bjsports-2024-108125) ## Your next small investment Invest a few minutes. Build the habit behind the potential return. SAVED ON THIS DEVICE ## Put a few minutes to work Log a real session or experiment with the demo. Actual active minutes Choose your movement[Movement guide ↗](https://fruitfulyears.com/troi/movements/) **** Walking minutes Additional waiting or rest time Count active walking, ascent, descent and brief turns as movement. Put passive elevator travel, waiting and rest here; these add to your total break, not your active-minute total. ### Movement today. Potential over time. Your movement **10**active minutes Added to your activity log when you log this session. Potential TROI Minutes **≈63** The research ratio, illustrated over 10 minutes A sustained-habit reference, not an estimate of this workout’s effect. Veerman reference: US adults 40+, Least-active → second quarter, about 28.5 extra walking-equivalent minutes daily, sustained over time. No exercise-specific return is inferred. [Model and assumptions ↑](https://fruitfulyears.com/troi/#longevity) Your session builds the habit; the research illustrates its potential. All active minutes enter your personal log. Up to 30 per day contribute to friends challenges; this is a participation rule, not a health target. ## The habit you’re building All movement settings · last seven days 7-day view **0** active minutes across your last seven days **0**movement minutes **0 / 7**movement days **0**active minutes for the challenge **Walking**Stairs: several floors**Stairs: one flight**Other / earlier entries Daily active minutes before the challenge cap. Colors show movement types. ### Your movement mix ## A little friendly momentum Fictional friends · build a habit together Together, every contribution counts ### Our 200 active minutes challenge Maya, Sam, Alex and you · last seven days · demo friends **0** / 200 active minutes ** Each person contributes up to 30 active minutes per day. Your personal log keeps every active minute. The cap supports shared participation; it does not describe a biological limit. Leaderboard Your weekly movement-day goal Ranking uses the same 30-active-minute daily cap. Plan mode celebrates movement-day consistency. ## Strength deserves its own celebration Build a balanced habit. Celebrate your strength achievements alongside your active minutes. ### Weekly strength days Ready to begin **0 / 2** ** 0 sessions · 0 minutes Your strength-day goal ### Other movement 0 sessions · 0 minutes Marching, dancing, and stairs count toward your movement-day plan. Strength achievements and movement days celebrate what you do. They are not converted into lifespan. How TROI Minutes work **The research:** Veerman and colleagues modeled US adults aged 40+, using total accelerometer-measured activity expressed as walking equivalents at 3 mph. The selected scenario, numerical return and uncertainty are shown together in the [research reference above](https://fruitfulyears.com/troi/#longevity). It was a population life-table model based on observational associations, not a trial measuring minutes of life earned from individual walks. **Your investment:** Logs record actual active minutes. Both stair settings include ascent, descent, brief turns and access walking, counted once. Passive transit, waiting and rest add to total break time. Earlier ascent-only entries stay labeled in history. **Potential TROI Minutes:** Modeled added life-minutes under a named published sustained-habit scenario, always paired with an investment denominator. Your logs do not establish your baseline activity quartile or reproduce the study’s total-activity measurement. For Veerman scenarios, the logging card scales the selected reference ratio to the entered active minutes as an arithmetic illustration. Microlives remains fixed at its published first-20-daily-minute reference and is not scaled to session duration. This does not validate a dose-specific or exercise-specific lifespan estimate. No session payouts or cumulative lifespan balance are calculated. **Friends:** The shared target is 200 active minutes over the last seven days, with a 30-minute daily contribution cap per person. These are participation design choices, not exercise prescriptions. Friends are fictional in this local demo. Strength achievements remain separate. **Earlier scores:** Previous game scores are archived below. They are not converted into potential longevity. Actual session minutes are preserved, including older timing definitions. [Walking model ↗](https://doi.org/10.1136/bjsports-2024-108125)[10-minute daily walking study ↗](https://doi.org/10.1016/j.jshs.2024.100970)[Strength-training evidence ↗](https://bjsm.bmj.com/content/56/13/755) Archived game scores Retired six-point game rule. These historical scores are not Potential TROI Minutes. Your original session minutes remain in history. Your session history TROI · More possibility in every small commitment. Local prototype. Data stays in this browser; demo friends are not real users. Representation note: public rendered content; forms, scripts, navigation and embedded frames are omitted. Open the canonical page for interactive functions. Modification dates are not factual review dates.