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Elliot Justin, MD, FACEP

Elliot Justin, MD, FACEP

Founder & CEO, FirmTech

Harvard University · Boston University School of Medicine

Elliot Justin, MD, FACEP, is an emergency physician and healthcare entrepreneur who founded FirmTech to bring objective data to men's sexual health. He previously founded and sold Swift MD and Pegasus Emergency Group. A frequent voice on men's health, he champions the idea that erectile function is an early warning sign for cardiovascular health, a vital sign most men never measure. He leads the science behind the TechRing and reviews all clinical content for accuracy.

Articles reviewed
53

Medical advisory board linkedin.com

How we write and review

  • Every health article is written against published research, and the primary sources are linked in the article.
  • Articles that make a clinical claim are reviewed by a physician before publication, and the reviewer is named on the page.
  • We say plainly when we are describing our own product or our own research.
  • We correct and re-date articles when the evidence moves, rather than quietly editing them.

Medically reviewed by Elliot Justin

Erection rings5 min

How Do Cock Rings Work? The Mechanics, Explained

The effect is entirely mechanical, and it lasts only as long as the ring stays on.

Testosterone5 min

The Military Now Tests Testosterone Every Year. Most Men Never Have

Whatever the politics, the underlying question is a fair one for any man: when did you last measure this?

Sexual health7 min

Sex After Menopause: How Pleasure Can Ease Common Symptoms

Pleasure is one of the few menopause tools that is low risk, low cost and genuinely enjoyable.

Company news3 min

A New Approach to Measuring Erectile Progress

The challenge is often not finding solutions — it's knowing whether they're working.

Tracking & data5 min

Morning Wood Decoded: What Waking Up Hard (or Not) Reveals About Your Health

Because it appears with no sexual thought or stimulation, it is a useful daily checkpoint.

Testosterone4 min

Low Testosterone Symptoms: The Signs Most Men Miss, and How to Confirm Them

These signs are easy to write off as ordinary aging or stress.

Tracking & data4 min

Erections as a Vital Sign: The Biohacker's Guide to Erectile Fitness

Your erections are one of the most honest health signals your body produces.

Erectile dysfunction4 min

Do GLP-1s Like Ozempic Help or Hurt Your Erections?

The honest answer is that it depends — which is exactly why tracking matters on a GLP-1.

Research4 min

Cock Ring for ED: New Research Shows It Actually Works — Even for Serious Cases

For men who can get an erection but can't keep it, pills address the start, not the finish.

Erectile dysfunction8 min

Does Zoloft Affect Sex Drive?

If your desire or performance feels different, you're not imagining it, and you're far from alone.

Sexual health2 min

The Penis and Clitoris: More Similar Than You Think

They're called homologous structures, which means they come from the same place and work in similar ways.

Research4 min

SSRI Sexual Dysfunction: New Research Reveals Permanent Side Effects

Research presented at SMSNA describes dysfunction that persists long after the prescription ends.

Tracking & data6 min

Nocturnal Penile Tumescence Test: What It Is, Why It Matters, and How To Track It At Home

A complete guide to the classic lab test and the at-home alternative.

Sexual health4 min

How Fitness Boosts Sexual Performance

Staying active can transform not just your body, but your confidence and performance.

Tracking & data4 min

Erection Tracker: What It Measures and Why It Matters

Two goals: a comfortable way to measure, and clear data you can act on.

Tracking & data6 min

Wearable Erection Ring: Turning Real-World Data Into Health Insight

A discreet tracker that works during sex and at night, rolling firmness and duration into one score.

Tracking & data2 min

The Modern Playbook for Erectile Fitness

Trends you can discuss with a clinician, instead of waiting for problems to escalate.

Tracking & data4 min

Beyond Traditional Wearables: The Sexual Health Monitoring Device

Today's consumers are taking control of their wellness journey, demanding real-time insight.

Research1 min

RigiScan vs. the TechRing: Comparing Nocturnal Erection Measurement

Urologists have been interested to know how the TechRing compares to the RigiScan.

Erection rings3 min

FirmTech vs Perfect Fit Xact-Fit Rings: A Comparison

Xact comes in 14 fixed sizes; FirmTech uses one adjustable strap.

Erection rings3 min

FirmTech vs Eddie by Giddy vs RX Sleeve Veno Support

Erection rings have been used for centuries for a simple reason: they work.

Sexual health2 min

Honoring Helen O'Connell, the Urologist Who Mapped the Clitoris

Her groundbreaking work on the clitoris has challenged a lot of misconceptions.

Erection rings4 min

The Guide to Vibrating Cock Rings: RingMate, Lelo TOR 2, We-Vibe Bond and Dame HUG

The key question with any vibrating ring: where is the vibration most effective?

Erection rings5 min

Xialla vs FirmTech: Which Tool for Sustaining Erections Fits You?

Fading erections, or venous leak, is likely the most common cause of ED.

Research8 min

Research Using the FirmTech TechRing and MaxPR

Smart wearables are modernising the diagnosis, management and preventive care of ED.

Sexual health3 min

The Link Between Sex and Longevity, and What Science Says

There's something pleasurable your doctor should be recommending more often.

Tracking & data3 min

Nocturnal Erections: Pillow Talk From Your Penis

Every man enjoys morning wood, and every man should be worried if he has dead wood.

Sexual health5 min

Prostate Cancer and Sexual Function

As penile rehabilitation is more widely accepted, more men return to pre-treatment function.

Testosterone4 min

Unveiling the Power of Testosterone

Its significance extends well beyond muscle and libido, and it matters for women too.

Sexual health5 min

What Is Special About a VaxAid Penis Pump, and How It Can Help

Vacuum therapy and a constriction ring solve opposite halves of the same problem.

Tracking & data2 min

Biohacking and Sexual Health: Track It to Hack It

Strategic interventions in our lifestyle, measured rather than guessed at.

Erection rings3 min

Put a Ring On It: One Toy That Changes Sex for Men

Beyond rock hard, there is cock ring hard.

Tracking & data3 min

The Evolution of Men's Wearable Sex Tech

A 2003 follow-up study noted sexual function decreasing sharply by decade after 50.

Tracking & data3 min

Data Privacy on Health and Sex Apps

New year, new you — and a new app holding some of your most sensitive data.

Research2 min

Research Presented at the Society for Sexual Medicine of North America, November 2023

Three pre-publication studies completed in autumn 2023.

Tracking & data3 min

Why Track Erections?

Nocturnal erections are indicative of healthy erectile function — when you can see them.

Erection rings2 min

The Benefits of Penoscrotal Rings

An intimate pleasure and confidence-enhancing accessory that has captivated thousands.

Erectile dysfunction4 min

PDE5 Medications: What Men Should Know Before Ordering Online

When men go limp, the first reaction today is to go online and get a pill.

Erection rings2 min

The TechRing vs. Performance Ring vs. MaxPR

A smart ring, a simple ring, and a maximum-performance ring — and who each is for.

Sexual health4 min

Climacturia After Prostate Treatment: The Unspoken Side Effect

Most men know about incontinence after prostate treatment. Far fewer are warned about this.

Sexual health2 min

Debunking Men's Sexual Health Supplement Myths

The biggest myth is that they are all safe and effective. Many are neither.

Erectile dysfunction3 min

Venous Leak Syndrome: Diagnosis, Prevention and Improving Erections

All erections deflate as venous blood leaves the penis. For some men, it leaves too fast.

Erectile dysfunction3 min

PTSD and Erectile Dysfunction: Restoring Intimacy

For military personnel, the effects of PTSD on sexual function can be particularly significant.

Erection rings7 min

The Benefits of Cock Rings for Female Partners

The reasons women report better sex with a ring might surprise you.

Tracking & data4 min

Understanding Your TechRing Data and Erectile Fitness Score

An overall score of 7+ is good, and 8.5 is excellent.

Erection rings1 min

Three Benefits of Using a Penis Ring

Helpful for men with ED, and for men who simply want more sensation.

Erectile dysfunction2 min

How to Enhance Your Sexual Performance Without Medication

There are devices, aids and habits that work without a prescription.

Erectile dysfunction3 min

Which Erectile Dysfunction Drug Is Best?

Medication is the most common ED treatment, but the guidelines list several options.

Erectile dysfunction4 min

Is Erectile Dysfunction Caused by Aging?

Nearly 40% of men are affected by ED by 40, and nearly 70% by 70.

Erectile dysfunction3 min

What Are the Causes of Erectile Dysfunction?

Nearly 75% of diabetic men will experience erectile dysfunction at some stage.

Erection rings3 min

How Erection Assistance Devices Improve Sexual Performance

Erection enhancing rings are made to improve comfort, performance and pleasure.

Erection rings3 min

How to Choose the Best Erection Ring

Start with the basics: decide what you want the ring to do, then match the fit to your body.

Erection rings4 min

How to Use an Erectile Performance Ring to Improve Erections

Cock rings were rarely discussed during my urology training, and they are not in the treatment guidelines.

Stop guessing.
Start measuring.

The TechRing records firmness, duration and nighttime erections, so the trend is something you can actually see. 30 days risk free.

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