Free 2-Minute Quiz

How Old Is Your Body, Really?

Your calendar age is just a number. Your biological age is the one that actually matters. Find out where you stand in two minutes.

Take the Free Quiz No email required to start · Takes 2 minutes
1992
Year Founded
3
Locations Nationwide
9+
World Class Providers
75
Platinum Program Spots

Most doctors look for what's wrong. We look for how good you can actually feel.

There's a big difference between "nothing is wrong" and actually feeling great.

At LifeSpan Medicine, we focus on your health. Not your disease.

Dr. Chris Renna founded this practice in 1992 on one idea. Conventional medicine is built to diagnose problems. It is not built to build vitality.

So he built something that does both. For over 30 years, patients have traveled from around the world to get it.

What Patients Say

"Dr. Renna changed my life. All of the injuries from my athletic youth were starting to add up and the constant pain from arthritis seemed to be something I was going to have to live with. Since having the injections I have been able to ski... and to live my active life without having to manage pain."

Lifespan Medicine Patient

"I really do believe that the anti-inflammatory program at LifeSpan Medicine changed our lives for the better and I can't thank you enough. I know that the changes I made helped me with this pregnancy. The lifestyle changes have also given our little girl the best start she could hope for in life."

Lifespan Medicine Patient
"Since having the injections I have been able to ski... and to live my active life without having to manage pain."
Lifespan Medicine Patient

How It Works

01

Take the Quiz

Two minutes. Twelve questions. You get a biological age score and a personalized breakdown.

02

See Your Results

Find out where your body is aging faster than it should. And what to do about it.

03

Book a Consult

If it makes sense, book a call with a LifeSpan physician. No pressure. Just a real conversation.

Dr. Chris Renna
Founder, LifeSpan Medicine

Dr. Chris Renna, DO

Dr. Renna has been practicing longevity and preventive medicine since 1992.

He realized early on that medical school teaches doctors to diagnose disease. It does not teach them to create health.

So he built a practice that does. Clients travel from around the world to see his team in Santa Monica, Dallas, and Miami.

"I really do believe that the anti-inflammatory program at LifeSpan Medicine changed our lives for the better."
Lifespan Medicine Patient

Find Out How Old Your Body Actually Is

It takes two minutes. The results might surprise you.

Take the Free Quiz Now Santa Monica · Dallas · Miami