Transform Your Health with the 10-Day Youthspan Challenge
Try the complete health tracking system — your progress is saved locally.
Your Complete Health Tracking & Journaling Platform
Complete Habit Tracking
Track all 12 evidence-based habits from the Youthspan protocol: morning routines, training sessions, nutrition, and evening wind-down practices.
Daily Health Journaling
Morning gratitude and focus prompts, plus evening reflection questions designed to build self-awareness and track your mindset alongside your habits.
Visual Progress Insights
See your health journey unfold with completion percentages, habit streaks, and comprehensive weekly reports that show exactly how you're improving.
Evidence-Based Protocol
Follow the exact daily tracking system that Siim and Inka Land use personally. No guesswork, just proven habits that support longevity and vitality.
Grounded in numbers that matter
The protocol, the research, and the habits — at a glance.
Days
In the Youthspan challenge
Habits
Evidence-based daily practices
Biomarkers
Referenced in the protocol
References
Scientific citations behind it
Why This Tracking System Works
Morning Health Tracking
Log your hydration, sunlight exposure, and movement to establish healthy circadian rhythms and sustained energy levels throughout the day.
Daily Habit Monitoring
Track training sessions, nutrition choices, stress management, and hydration with detailed progress visualization and completion tracking.
Evening Reflection Journal
End each day with guided journal prompts that help you process lessons learned, celebrate wins, and set tomorrow's health intentions.
About Siim & Inka

Siim Land
Longevity author · 9× bestselling health writer
- Top 1% Lowest Biological Aged Male (Biologically 12 years old)
- Top 1% in VO2 max of males (superior cardiovascular fitness)
- Top 5% in muscle mass
- Top 1% in low visceral fat
- Top 1% in over 100 biomarkers
- Author of world's largest longevity book (8,000 scientific references)
- 9-time bestselling health author

Inka Land
Clinical nutritionist · Neuropsychologist · TEDx speaker
- Achieved Highest Age Reduction (Biologically 16 years old)
- Reversed 4 Chronic Health Conditions
- World Leader in VO2 max (superior cardiovascular fitness)
- World Leader in muscle mass preservation
- World Leader in low visceral fat
- Clinical Nutritionist and Neuropsychologist
- 2-time Best-selling health author & TEDx speaker
Ready to Transform Your Health?
Join our growing community of health optimizers using our tracking system to build better habits and unlock their healthiest selves.