April 29, 2024

Understanding Lifespan vs. Healthspan with Insights from Dr. Peter Attia

When we think about living a long life, it’s not just about counting the years. It’s about making those years count. Dr. Peter Attia, a leading expert in the science of longevity, helps us understand the crucial difference between how long we live (lifespan) and how well we live (healthspan). 

Here’s a simple breakdown.

What is Lifespan?

Lifespan is the total number of years a person lives. Dr. Attia explains, “Lifespan is essentially your ‘expiry date.’ It tells you how long you will be around, but it doesn’t say anything about the quality of those years.” It’s a straightforward measure: the day you were born to the day you die.

What is Healthspan?

Healthspan, on the other hand, is about the quality of life you enjoy during those years. It refers to how long we can maintain a healthy, active life without being slowed down by disease or disability. Dr. Attia often emphasizes, “Healthspan is about the years you live fully—physically, mentally, and emotionally healthy.” The goal here is not just to add years to your life but to add life to those years, ensuring they are vibrant and fulfilling.

The Key Differences

While lifespan is a measure of quantity, healthspan is a measure of quality. Dr. Attia describes this by saying, “You want to skate smoothly to the very end of your life, not hobble to the finish line.” Essentially, it’s not just about living longer; it’s about living better. In practical terms, someone with a high healthspan will be able to do their favorite activities, stay independent, and enjoy a good life even as they age.

Why is Healthspan Gaining Popularity?

Today, more people are interested in healthspan because they realize that living longer doesn’t automatically mean living well. As Dr. Attia puts it, “People are seeing that it’s possible to maintain strength, vitality, and enthusiasm for life far into older age.” With advances in medicine and more awareness about healthy living, people are striving not just for a long life, but a full and rich one.

In summary, while lifespan tells us how long we might live, healthspan focuses on how well we live. By understanding and improving our healthspan, we aim not just to extend our years, but to enhance the quality of every year. This shift in focus is crucial for ensuring that our later years are as rewarding as possible. As the concept of healthspan grows in popularity, it promises a future where we all can look forward to not only a longer life but a happier and healthier one as well.


If you’re interested in exploring more about the topics of lifespan and healthspan as discussed by Dr. Peter Attia, there are several podcasts and videos where he delves into these subjects in depth:

  • The Peter Attia Drive Podcast – This podcast offers a series of discussions that cover a broad range of health, longevity, and vitality topics, including the differences between lifespan and healthspan. You can listen to various episodes that focus on strategies for a longer and healthier life here.
  • Huberman Lab Podcast – In an episode with Dr. Andrew Huberman, Dr. Attia talks about practical steps to improve vitality, emotional, and physical health, which are essential components of a good healthspan. Detailed show notes and more can be found here.
  • EconTalk: Lifespan, Healthspan, and Outlive – Dr. Attia joins Russ Roberts to discuss how our healthcare focus could shift more towards healthspan rather than just lifespan. This conversation includes strategies to enhance life quality as we age. Listen to their conversation here.