Why these 8 habits
These aren't random — they're the eight behaviors with the strongest combined evidence for both lifespan and healthspan, drawn from the Blue Zones research, Adventist Health Study, Nurses' Health Study, EPIC, and UK Biobank cohorts. Stacking 5+ of them consistently is associated with a ~12–14 year increase in disease-free life expectancy (Khera et al., NEJM2016; Li et al., Circulation 2018).
How streaks work
Your streak counts consecutive days you've completed each habit. Miss a day and the streak resets — but your “best” record is preserved as motivation. Everything is stored locally in your browser using localStorage — nothing is sent to any server, nothing is shared, nothing requires a login. Clearing site data resets your streaks.
The 2-minute rule
If a habit feels too big, shrink it. “10 minutes of meditation” becomes “1 deep breath.” “7,000 steps” becomes “put on shoes and walk to the mailbox.” The goal of the first 60 days is identity (“I'm someone who shows up”), not optimization. Consistency beats intensity, especially early.
Stacking, not stretching
New habits stick best when they're anchored to existing ones: drink water right after brushing teeth, stretch while the coffee brews, meditate before checking email. Pick your two anchors, stack two habits onto each, and you've covered four of the eight without thinking. The other four become easier once those four are automatic.
References
- Li Y et al. Impact of healthy lifestyle factors on life expectancies in the US population. Circulation. 2018;138:345-355.
- Khera AV et al. Genetic risk, adherence to a healthy lifestyle, and coronary disease. NEJM. 2016;375:2349-2358.
- Buettner D. The Blue Zones. National Geographic, 2008.
- Lally P et al. How are habits formed: modelling habit formation in the real world. Eur J Soc Psychol. 2010;40:998-1009.