Joseph C. Watso, PhD

It is strongly recommended to not conduct, fund, or publish research studies that use spot urine samples with estimating equations to assess individuals’ sodium (salt) intake in association with healt... Spot urine samples with estimating equations have been used to assess individuals’ sodium (salt) intake in association with health outcomes. There is large random and systematic error in estimating so...

It is strongly recommended to not publish research studies using spot urine samples with estimating equations to assess sodium intake in association with health outcomes: a policy statement of the World Hypertension League, International Society of Hypertension..
pmc.ncbi.nlm.nih.gov/articles/PMC...

Can’t stop staring at the prevalence of hypertension among young people.

www.ahajournals.org/doi/epub/10....

#10 CNN Feature, Science Communication, & AI Writing CNN just featured our research, but they got the methods and results wrong! Needless to say, the newsletter is back (and it won't be written by AI).

open.substack.com/pub/joewatso...

CNN just featured our research, but they got the methods and results wrong! Needless to say, the newsletter is back (and it won't be written by AI).

3/3 This remaining difference was accounted for by the ~10% higher hemoglobin levels in males, which allows their blood to carry more oxygen to the working muscles.

t.co/Y0WoyNWw3b

2/3 Males have more muscle mass on average, but this didn't explain the whole picture. After researchers adjusted for differences in muscle mass, females' VO2max was still about 15% lower.

New research on highly trained athletes highlights that sex differences in maximal oxygen uptake (VO2max) are primarily driven by 2 factors: body composition and hemoglobin.🧵

#ExercisePhysiology #VO2max #SexDifferences #Hemoglobin #SportsScience #AthletePerformance #Research

🚨 Big news!

CNN highlighted the work of Dr. Joseph Watso in its feature on the heart-boosting benefits of fast walking.

CNN’s article: edition.cnn.com/2025/08/11/h...

Original study: journals.physiology.org/doi/epdf/10....

#FSU #Longevity #PublicHealth #ResearchSpotlight

DAYLIGHT SAVINGS TIME, THE REAL MARCH MADNESS — Cardiovascular and Applied Physiology Laboratory Earlier this month we moved our clocks forward an hour for daylight savings. Every year after “spring forward” there are more heart attacks and car accidents. Could this be attributed to losing an hou...

Fully agreed!

DAYLIGHT SAVINGS TIME, THE REAL MARCH MADNESS
caplaboratory.com/lay-articles...

@fsuisl.bsky.social

YouTube video by Mike Axler PhD, CSCS 095. Exploring Cardiovascular Health and Ultra Marathon Running with Dr. Joe Watso

Thanks to Dr. Mike Axler for hosting me on the Simple Science Podcast. We talk about cardiovascular research, ultramarathons, and much more. ❤️🔬🏃
www.youtube.com/watch?v=vbAz...

Person stepping onto a digital scale at home, with bright orange dumbbells, a foam roller, and potted plants nearby on a wooden floor.

What's a smart scale? Should you use one? What do you need to know about your body composition besides your weight? APS member Austin Robinson (@ausrob-phd.bsky.social) weighed in 😜 on the subject. Read more from @NBCNews: ow.ly/sKMo50WQuEz #ISpyPhysiology 🧪

@fsuisl.bsky.social @floridastate.bsky.social

Big team effort with Victoria Nasci, Jazmine Benjamin, Rebecca Fetter, Joe Stock, Nathan Romberger, @matt-babcock.bsky.social, Megan Wenner, @ausrob-phd.bsky.social, and Eman Gohar

Published with the @apsphysiology.bsky.social
journals.physiology.org/doi/abs/10.1...

🧂Our controlled feeding pilot trial suggests potential sex differences in kidney responses to dietary salt. With a high salt diet, females may increase endothelin-1 excretion more. Endothelin-1 is a potent vasoconstrictor peptide and promotes salt excretion by the kidneys.

🔥 How does your heart handle the heat as you age?

New research co-authored by Dr. Joseph Watso reveals that older adults adapt differently to extreme heat, relying more on heart function to stay cool, but facing greater risks to blood pressure and heart health.

#FSUResearch #HealthyAging

🚨 New publication alert!

Dr. Joseph Watso and student researcher Joseph Vondrasek co-authored a new study examining how ultramarathon running impacts cardiovascular health across the lifespan.

Read the full article here:
link.springer.com/article/10.1...

🔥 How does the heart handle heat with age?

This research brings new clarity to how aging hearts respond to extreme environmental stress.

Full study here: journals.physiology.org/doi/abs/10.1...

#AgingAndHeat #HeartHealth #HealthyAging #FSUResearch #ISLDigest #CardiovascularPhysiology

Thanks to @fsuannescollege.bsky.social for providing funding to make this article open access.

@floridastate.bsky.social @fsuisl.bsky.social @fsuresearch.bsky.social @sfsu.bsky.social @drjimmybagley.bsky.social @ausrob-phd.bsky.social @matt-babcock.bsky.social

Key outcomes:

Central blood pressure increased across age in ultramarathon runners, but their brachial (upper arm) blood pressure didn't follow the same trend.

An impressive 86% of ultramarathon athletes had arterial stiffness (cfPWV) values better than what's typically predicted for their age.

🚨New publication alert

Central blood pressure and arterial stiffness among ultramarathon runners across the lifespan

link.springer.com/article/10.1...

🚨 New publication alert!

Dr. Joseph Watso co-authored an editorial with Joe Vondrasek highlighting research on advanced phenotyping in patients with a Fontan circulation.

Read more below:
journals.physiology.org/doi/abs/10.1...

#CardiovascularHealth #ISLDigest #FSUResearch

@fsuisl.bsky.social @fsuannescollege.bsky.social

New research alert!

🌡️ Young and older adults maintained cardiac output in extreme heat. However, older adults relied more on systolic (i.e. pumping) function, yet still struggled to maintain systolic blood pressure.

journals.physiology.org/doi/abs/10.1...

Man and woman wearing helmets standing with a bicycle put on sunblock.

If you exercise outside in the summer, we hope you're protecting yourself with sunscreen. Don't worry, it's not going to affect your workout, and it won't make you overheat. Find out why in a vintage #ISpyPhysiology post by @joewatso.bsky.social‬: ow.ly/FqLC50Wtuc5 🧪

Great time working with Joe Vondrasek on an @apsphysiology.bsky.social editorial.
journals.physiology.org/doi/abs/10.1...
We highlighted work from Ridderbos et al. that supports considering pulmonary vascular disease for patient-tailored treatment among patients with a Fontan circulation.

Thanks for having me on!

YouTube video by Thomas DeLauer Cardiac Scientist Reveals How to Lower Blood Pressure in 7 Days - Dr. Joseph Watso

High blood pressure (i.e., hypertension) is the leading modifiable risk factor for heart disease, the leading cause of death worldwide. Learn about how exercise, sodium intake, and other health behaviors affect blood pressure.

www.youtube.com/watch?v=bgPR...

🎉Congratulations to @joewatso.bsky.social, et al. on receiving #AJPRegu's Best Impact Paper Award for 2024! 🏆 Honored at #APS2025.

Read the paper: ow.ly/HRop50VSun8
#HeartRateVariability #CardiacVagalBaroreflex #BloodPressure #BloodPressureVariability