Dr. Jeffrey Sankoff

Dr. Jeffrey Sankoff is a Denver, Colorado-based emergency room physician, who produces the "TriDoc Podcast." Dr. Sankoff is also a triathlete himself and a USAT- and Ironman-certified coach.

Latest Stories

News

Fact vs. Fear: The Real Risks of Ironman Racing

Don’t let sensationalist headlines fool you: The data shows that while endurance racing isn’t without risk, it’s far safer than the tabloids suggest.

July 28, 2026

Injury Prevention

Ozempic and Triathlon: A Risky Recipe for Tendon Tears?

New data reveals that the widely used weight-loss drugs GLP-1 receptor agonists are associated with a significantly increased risk of serious tendon injuries - a concerning finding for endurance athletes using the medication, says Dr. Jeffrey Sankoff.

June 4, 2026

News

Should All Middle-Aged Triathletes Get Advanced Lipid Testing? A Doctor Weighs In.

A new paper discusses how a standard cholesterol test failed an Ironman triathlete and revealed a hidden killer. Should endurance athletes demand more than basic lipid screenings?

March 31, 2026

Recovery

Can Vagus Nerve Stimulators Really Boost Athletic Recovery?

Vagus nerve stimulation (VNS) is marketed to athletes for enhanced recovery after intense exercise - but is the hype based on hard science? Dr. Jeffrey Sankoff dives in.

November 12, 2025

News

Why You Get a Headache After Swimming (And What to Do About It)

Don't skip swimming due to headaches. Dr. Jeffrey Sankoff helps triathletes get to cause of swimming headaches to prevent and treat them.

July 25, 2025

News

What Triathletes Should Know About Rhabdomyolysis, According to An ER Doc

Exertional rhabdomyolysis is a potentially dangerous condition brought on by overtraining. Learn the signs and prevention methods from an ER doctor.

June 18, 2025

News

What to Take Instead of NSAIDs, According to an ER Doctor

Two-thirds of athletes report using NSAIDs like Aleve to manage pain and inflammation - and that could be doing major damage. Dr. Jeffrey Sankoff explains why, plus recommends the best NSAID alternatives for athletes.

July 10, 2025

News

Being Fit More Important than Being Thin, Study Finds

Dr. Jeffrey Sankoff discusses why fitness trumps weight loss when it comes to longevity.

February 10, 2025

News

Carbon Monoxide Rebreathing: Training Hack or Death Trap?

After making headlines at the Tour De France last year, carbon monoxide supplementation is under the microscope. Emergency room physician and triathlete Dr. Jeff Sankoff sheds light on this risky practice.

January 13, 2025

Recovery

Stretching or Foam Rolling: Which is Better?

Dr. Jeffrey Sankoff looks at a new study that looks at static stretching versus foam rolling for flexibility.

November 6, 2024

News

What One Study Tells Us About Heart Health for Aging Triathletes

A 2024 study on heart health in endurance athletes over 50 brings concerning and reassuring findings on the "reverse J-curve" effect of exercise and cardiac events. Dr. Jeffrey Sankoff explains.

January 20, 2026

Injury Prevention

The (Real) Impact of Running on Your Knees, Acccording to a Doctor

Almost every runner has heard it: Running is bad for your knees. But is that true? Dr. Jeffrey Sankoff looks at recent research, plus the magic mileage number to keep your knees healthy.

July 17, 2024

Training

Research Confirms: No, Sunscreen Won't Make You Overheat

A new study puts to bed the "endurance myth" that a layer of sunscreen will block the body's ability to sweat or dissipate heat during exercise.

May 30, 2024

Injury Prevention

An ER Doc Shares Guidelines for Returning to Training After Illness

When is it safe to go back to exercising after a cold? Covid? The stomach flu? Dr. Jeffrey Sankoff shares return-to-training guidelines for common illnesses.

February 12, 2024

Recovery

CBD Doesn’t Work, Says New Study – A Doctor/Triathlete Weighs In

New research shows that CBD oil does not prevent nor treat delayed onset muscle soreness. But will that matter to those who swear by it?

February 8, 2024

Run

New Study Examines How Running Shoes Can Improve (or Worsen) Biomechanics

Modern running shoes are designed for injury prevention and comfort - but does that come at a cost? Dr. Jeffrey Sankoff breaks down the results of a new study on how the footwear you choose might affect the way you run - for better and for worse.

November 20, 2023

Training

Before Cold and Flu Season Hits, Know the Link Between Exercise and Immune Function

An ER doc looks at a study on how exercise impacts the immune system, and explains how to prevent illness after a big race or training day.

November 3, 2025

Training

An ER Doc Explains the Best Ways for Triathletes To Hack the Heat

Dr. Jeffrey Sankoff explains why your body overheats during a race - and gives a list of surprising top tips.

September 14, 2023

Nutrition

Study: Better Gut Germs Might Mean A Faster Ironman

Dr. Jeffrey Sankoff discusses a new study, which found athletes with the highest microbiome concentrations of certain bacteria had the fastest finishing times in an Ironman.

August 24, 2023

Injury Prevention

An ER Doc Explains Why You Get Sick after a Triathlon Swim

Ever gotten nausea or diarrhea after a triathlon swim? Water quality issues may be to blame - and they're becoming more common every season.

August 17, 2023

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