Personal health optimization · With Dr. Z

Your labs look normal.
You still don’t feel
like yourself.

Low energy. Poor sleep. Brain fog. Weight that won’t budge. Find a starting point—and get help putting it into practice.

Begin with DriversPulse™, a free assessment of your 7 Drivers of Aging.

Start my free assessment See how Dr. Z can help
Dr. Sajad Zalzala
Meet your physicianSajad Zalzala, MD

Known as Dr. Z. Focused on helping you feel and function better as you age.

A little more about me

Dr. Z in the media

Watch the Fox interview
Forbes FOXNEWS CNBC Scientific AmericanCustom Media REAL SIMPLE

Two ways to begin

Find your
starting point.

Start with a free assessment, or ask Dr. Z to put your health information in context.

Explore on your own

DriversPulse™

Free

Answer a short questionnaire to see which of the 7 Drivers of Aging may deserve attention first.

  • Your suggested starting Driver
  • A view of all seven areas
  • Educational guidance based on your answers
Start my free assessment

Get Dr. Z’s perspective

Healthspan Radar

$99

Dr. Z reviews your DriversPulse results, health story, and the records you choose to share.

  • A personal educational report
  • A private video walkthrough from Dr. Z
  • Review it in your own time; no appointment
Explore Healthspan Radar

Ready for a treatment plan and ongoing medical guidance?

Go straight to the Accelerator

The 90-Day Healthspan Accelerator

Turn your priorities
into a plan.

An assessment helps you decide where to start. The Accelerator adds medical management for health optimization: a personal treatment plan, prescriptions when appropriate, and follow-up with Dr. Z.

Over 90 days, we put your plan into practice and adjust it as we learn how you respond. You can begin here directly or continue after a Radar review.

$2,50090 days with Dr. Z
Explore the Accelerator
  1. 01

    Understand your starting point

    Your AgeScore360™ dashboard and a 60-minute kickoff help us set priorities around your health and goals.

  2. 02

    Agree on what to do first

    Work through practical changes, testing recommendations, and treatment options suited to your health and goals.

  3. 03

    Adjust as you go

    Three more 60-minute visits, portal messaging, and weekly group calls support a plan that evolves with your needs.

  4. 04

    Know where to go next

    Review your progress and next priorities. Continue on your own or keep working with Dr. Z through Ascend.

After the Accelerator · Optional ongoing care

Keep working with Dr. Z through Ascend.

Ongoing medical follow-up, portal messaging, weekly group calls, and a 60-minute consultation each quarter.

$199/month

Explore Ascend

Inside the Accelerator · AgeScore360™

See how the pieces
fit together.

Your AgeScore360™ dashboard brings the 7 Drivers into one view. We review it alongside your history, symptoms, and available test results to choose what to work on first.

For someone like Alex, sleep and daytime energy may deserve attention first. Your priorities will depend on your own assessment and goals.

Explore the 7 Drivers

Prefer an assessment visit before a program? AgeScore360™ is also available for $499, with your dashboard, a 60-minute visit, and lifestyle guidance.

Explore AgeScore360™
AgeScore360™Your health, in one view

A personal starting point

Meet Alex, 46.

Unrefreshing sleep. Afternoon crashes.
Weight that won’t budge.

The 7 DriversScore / 100
Sleep First focus
43
Body composition & metabolism
57
Hormones
70
Inflammation & immunity
77
Cellular energy
47
Gut health
80
Toxic exposures & nutrients
83
A place to start: sleep

Review sleep alongside daytime energy and metabolic health.

Fictional patient example. Illustrative questionnaire scores; higher is better. Your priorities depend on your own assessment.

Patient perspectives

Time to be heard.

What patients say about working with Dr. Z.

“Extremely knowledgeable and helpful. Dr. Zalzala took time to really understand my concerns and provided helpful expertise and information.”
— Marion
“Dr. Zalzala is very knowledgeable. He has a lot of experience. He was attentive, asked a lot of questions and got the full picture.”
— Reb
“For the first time I felt understood and respected by a medical professional.”
— Jamie
“It is so refreshing to speak to a provider who listens so well.”
— Alison
“Dr. Z is one of the most ethical, knowledgeable doctors I have ever met.”
— Matah
“Dr. Sajad Zalzala is an exceptional physician— incredibly knowledgeable and caring.”
— Roxanna
“Clear, concise information and a thorough intake… a sense of being understood.”
— Greg
“Great doctor. Listens and attentive to his patients. Thank you.”
— Taylor
“I found him personable, thorough, knowledgeable, and well informed. He thoughtfully and carefully listened to my medical history.”
— Morgan
“He explained the risks and possible benefits clearly.”
— Alex
Sajad Zalzala, MD, founder of Optional Aging
Your physician & founderSajad Zalzala, MD

A little more about Dr. Z

A personal approach
to the years ahead.

I’ve always cared about taking time with patients and looking at the whole picture. I want to understand how you feel, what you’ve tried, and what matters to you.

My work has brought together clinical care, longevity research, and telemedicine. As a co-founder of AgelessRx, I helped bring longevity-focused care to more people.

At Optional Aging, we work together on your health. I review your results, help you choose your next steps, and adjust your plan as we learn more.

Work with me

Before you begin

A few things
worth knowing.

What’s the difference between DriversPulse, Radar, and the Accelerator?

DriversPulse gives you an educational starting point from a short questionnaire. Radar adds Dr. Z’s review of your health story and shared information, delivered as a report and video. The Accelerator is a 90-day medical program for health optimization, with a treatment plan and ongoing follow-up.

Do I need to buy every step?

No. You can start with Radar or go directly to the Accelerator. DriversPulse is part of Radar’s intake, and the full AgeScore360™ assessment is included in the Accelerator. If you start with a paid assessment, see its product page for upgrade credits and timing.

Will Dr. Z replace my primary care doctor?

Keep your primary care doctor and other treating clinicians. Our work focuses on health optimization. It does not replace primary, urgent, or emergency care.

Can I work with Dr. Z from where I live?

DriversPulse and Healthspan Radar are educational and available worldwide. Medical programs are for adults 18 and older in eligible U.S. locations, subject to eligibility and clinical review.

Start where you are

Take the first step
toward feeling more like you.

Begin with DriversPulse to see which areas of your health may deserve attention first.

Start my free assessment