Moms, we wrote a children’s book.

This is our love letter to mothers everywhere. It’s a reminder that taking care of ourselves is the greatest act of love. And it’s a celebration of the everyday moments that make life worth staying healthy for.

Long live taking care of ourselves

to care for the ones we love.

Motherhood is a constant sacrifice–an act of quiet, persistent giving, spanning generations. But, moms can’t forget that giving care starts with “caring for me.”

Live 100 healthy years.

It’s not just about living longer, but living better—without missing a moment. Insist on not just counting the years, but making the years count. Get 100+ lab tests and personalized insights tracked over your lifetime.

100+ lab tests

Whole body testing

Tracked over time

Trusted by


industry experts.

Dr. Andrew Huberman
“I’ve been so impressed by Function."
Casey Means, M.D.
"Function is changing everything about preventative, empowered health."
Mari Llewellyn
"This is such a needed technology. As women, it can be challenging to figure out what’s wrong with our health."
Mark Hyman M.D.
"It's the most powerful approach to health I’ve seen in my career as a doctor."

A membership that puts your health in your hands.

100+ lab tests annually
With over 100 advanced lab tests, followed by a 60+ test follow-up after 3-6 months, it’s 5x more lab testing than the average physical.
Whole-body testing
Comprehensive lab testing covering your heart, hormones, metabolic, stress, autoimmunity, toxins, reproductive health, and much more.
Personalized insights
Get data-driven insights from the world’s top doctors based on your unique results.
Tracked over time
Seamlessly track your lab results all in one secure place over time. Monitor how your health evolves as you do.

Testing is easy

Step 1
Quick Booking
Secure a time slot at one of 2,000+ Quest Diagnostics locations around US
Step 2
15 minute lab visit
Annual testing involves two sessions following an 8-hour fast.
Step 3
Take action. Test again.
Turn your results into actionable insights with expert review, then test again.

Common questions

How do I join Function?
What does a Function membership include?
Who needs Function?
How does Function keep my information safe?
Is insurance involved?