BZ Longevity
BZ Longevity is a testing facility on North Elston Avenue in Chicago, co-founded by Muhammad Raza Aftab, MD. It offers DEXA scans for body composition and bone density, VO2 max testing on a bike or treadmill, resting metabolic rate testing and a longer metabolic efficiency test. Tests are booked one at a time or as a four-test package. People come here to measure fitness, body composition and metabolism.
The care team
Every clinician the operator publishes by name, with their role exactly as the operator states it.

Muhammad Raza Aftab
MD, DABOM

Dr. Ryan
Sports Performance Chiropractor
Everything BZ Longevity lists
3 tests and services across 1 kind of care
Whole-body baseline and Strength, fitness & body composition.
Fitness, strength & body-composition assessment
Fitness & tracking- DEXA scan
- Measures bone density, lean mass and visceral fat precisely.
- VO₂ max testing
- Measures cardiorespiratory fitness, the strongest exercise predictor of longevity.
- Metabolic rate testing
- Measures calories your body actually burns at rest.
In the clinic's own words, not yet matched to a category we can compare across clinics.
Other Chicago clinics listing the same tests
Practical information
Confirm anything time-sensitive directly with the clinic before your visit.
Similar clinics nearby
Selected based on location and overlapping tests and services.

Santé Integrated Health & Wellness
Winnetka
Led by Dr. Faris Murad, Founder and physician
- DEXA Scan (bone density and body composition)
- Resting Metabolic Rate (RMR)

MD Longevity Lab
Arlington Heights
Led by Dr. Vikas Patel, Co-founder
- VO2 Max Testing with Longevity Protocols
- Whole Body DEXA Scan

Chicago Direct Primary Care
Chicago
Led by Muhammad Raza Aftab MD, DABOM, Founder and physician
- VO₂ Max Testing
- DEXA Scan
About this profile
Everything on this page is what the clinic publishes about itself, gathered from the pages linked below and put in one place, in plain English. Where a fact comes from somewhere else, it is named beside that fact.