How can I estimate and extend my lifespan?

It depends on which factors matter most for you. Sleep, exercise, diet, smoking, alcohol, and blood pressure each shift life expectancy differently. A free quiz can estimate your lifespan and biological age in about 5 minutes, then show which habit would add the most years. YapSpan uses published study figures so you can see exactly where each estimate comes from.

What is biological age?

Biological age is an estimate of how old your body acts based on health markers and lifestyle habits, as opposed to your chronological age (years since birth). Someone with healthy habits may have a biological age younger than their birthday age.

YapSpan

Start here

How YapSpan works

Take the Life Quiz first, then see what moves your number.

How it works

Where to go next

QuizzesA short quiz for each habit, like sleep, exercise or diet, with the years it adds or costs.
What MattersCharts that rank habits by how much they change your odds, with your answers placed on them.
Deep DivesOne topic at a time: what the studies say matters most, and one concrete step for each factor.
WikiA reference on how sleep, exercise, diet, the heart, the brain and aging work.
FeedbackTell us what works and what does not. We read every note.

How it works

🧭What YapSpan isTwo numbers from how you live, and the habits that move them.

📊How the numbers workYour biological age, life expectancy and a 0-100 score per habit.

✳️What a star (*) meansA number we converted. Tap it to see the study.

🔬Evidence tiersHow far each study lets you trust its result.

💾Your answersThey save as you go. Sign in to keep them.

Where to go next