Health & Longevity Calculators
Assess your health risks, optimize supplementation, and estimate life expectancy with calculators based on epidemiological research and clinical guidelines from WHO, CDC, and peer-reviewed studies.
Data-Driven Health Assessment
These calculators translate population-level health research into personalized insights. They don't replace medical testing — but they can help you understand risk factors and have more informed conversations with your healthcare provider.
Longevity & Risk Assessment
The Lifespan Calculator uses actuarial data adjusted for lifestyle factors (exercise, diet, sleep, smoking, alcohol) to estimate life expectancy. It's not a crystal ball, but it highlights which modifiable factors have the biggest impact on your projected healthspan.
Supplementation
Vitamin D deficiency affects an estimated 1 billion people worldwide. Our Vitamin D Calculator estimates your ideal daily intake based on sun exposure, skin tone, latitude, and BMI — factors that dramatically affect your body's ability to synthesize vitamin D naturally.
Sleep Optimization
The Sleep Calculator uses 90-minute sleep cycle science to find optimal bedtimes and wake times. Waking mid-cycle causes grogginess regardless of total sleep duration — timing matters as much as quantity.