Science
And what does Damar Hamlin’s cardiac arrest tell us about the risks sports pose to an athlete’s heart?
Do you turn into a real redhead when you run? Our expert says that may not be a bad thing...
How well you can see your surroundings matters, but subtle gait changes also burn more energy
Science-backed strategies to help you learn to accept racing discomfort and choose how you react to it
In large population studies, glucosamine-chondroitin, long taken to ease runners' joints, is linked to greater longevity.
All the physiological proof you need that you should definitely be doing hill repeats if you're trying to become a more efficient, faster, and injury-free runner.
A burgeoning area of training science theorizes that the less stressed a runner is, the more positively he or she may adapt to training stimuli. Plus 5 quick tips to lower your own stress levels.
A scientific paper predicts how potential future Summer Games host venues may become more and more constrained as global temperatures continue to rise.
In an excerpt from a new book, a running medical doctor describes how running improves emotional well-being, brain health, and helps forge connections to new friends.
In an era of “code-red” climate catastrophe, the survival of our sport depends on its ability to adapt. Here’s what running and races may need to look like in the near future as global temperatures climb.
When you're running in the heat, how much should you adjust your pace — and still get the same workout intensity? We dig into the science of swelter.
How science is bridging the gap between physical and mental health.
Cannabis may not make you faster, but the science says the herb can provide benefits during light aerobic exercise and recovery.
The news of Shelby Houlihan's four-year ban created an outpouring of confusion. We waded through the science and research to help answer some of the top questions.
Gut problems in runners have myriad sources — from stress to heat, caffeine to sleep deprivation — and all of them can sabotage your performance.
Spicy days are here, here’s how to acclimate to heat and get an edge on your competitors.
Blood Flow Restriction training, a new fitness trend, could boost your muscle strength, endurance, and help you recover from injury faster.
AI is the inevitable future of athletics posed to revolutionize the endurance sporting industry. Here’s where we are, and what we can expect to see in the coming years.
Studies continue to scramble the science on eating eggs. Should eggs be a staple of your running diet?
Psychological skills training can significantly reduce stress and negative thoughts before and during a marathon — that’s important for your time, and for having a good time.
How top runners are experiencing COVID-19 vaccine symptoms and adapting their training. Plus six doctor's guidelines.
We dive into the research and share the best and worst late-night snacking habits for when hunger pangs hit close to bedtime.
The psychological characteristics that lead to over-reliance on data, and 3 ways to teach yourself how to trust your own perceptions and judgments more than you trust your watch.
The hype of HIT has been around for years. Now we can also see the limitations. Here are nine rules for runners to use high intensity training productively.
This primer on a runner's favorite energizing compound breaks down exactly what caffeine is, common sources and some effects these sources have on the body.
A sports scientist explains why our bodies seem to be working against us at times.
Youth running popularity is growing, and while experts find no major issues, girls face higher health risks.
On Episode 11 of the Endurance Podcast, Ian Sharman sits down with exercise physiologist Samuele Marcora to discuss the importance of the brain and perceived effort on performance.
If you're feeling constantly fatigued, tired throughout the day, or frequently experience mid-run weakness, it may be low ferritin levels. Here's what to do.
How to use doubles and low-carb training to boost your glycogen storage ability.
A new science paper explores the subject at great depth, and concludes that it's possible, but not likely.
The big data report is based on Fitbit-like measurements, not dubious questionnaires.
Understanding how the body adapts to stress helps us to know when and how to change our training.
What science says about setting meaningful, internally motivating, and satisfying goals that are exciting but not overwhelming
Develop mental fitness and resilience by learning how to face reality like elite runners
We often hear the term VO2 max in relation to fitness and in training programs. What does it mean and how important is it?
Do high-tech prosthetics give runners a competitive advantage?
Get your training intensity and volume right by basing it on time rather than distance.
Do you know the difference between fast-twitch and slow-twitch?
Here are nine common signals you should pay attention to and what they mean when you experience them.
Humans are uniquely built for running in high and low temperatures.
In his new book, Exercised, Daniel Lieberman explores exercise in the life of our ancient ancestors, and how that affects our relationship to running.
Most similar research focused on one or two subjects; this paper looked at many more, including Eliud Kipchoge.
Figuring out how many calories running burns involves a fairly straightforward calculation, but the overall equation is not as simple as it seems.
From probiotics to ginger, here’s how to assess the supplements that can help you manage gut woes.
Rules for managing your body composition without focusing on your weight.
Tracking what successful marathoners actually do reveals new optimal training patterns of hard weeks and easy weeks.
Identify what you're doing wrong and follow these simple preventive measures to help you avoid these common gut issues during training and competition.
Brain science reveals the reasons we choke when we care most about our performance, and strategies to build the confidence we need to avoid it.
Scientists use mathematical models to accurately predict marathon times — and when you're overtraining — from recorded training data. App to come. Watch this space.
Not only does your brain sense when you’re dehydrated, it monitors what you drink and eat and adjusts your thirst immediately. Runners should pay attention.
The performance benefits of the world’s favorite chemical could be washed out if it causes trouble in your gut.
Rising temperatures, extreme weather, degraded air quality, and ravaged ecosystems could hold catastrophic consequences for endurance sports.
Athletes tend to have a more diverse gut microbiome. But does it make a difference in athletic performance?
In this excerpt from "Kicksology," Brian Metzler takes an in-depth look to try and find the culprit behind the prevalence of injuries in runners.
From wildfires to car traffic, all runners should be aware of the air quality before working up a sweat.
How visceral sensitivity can be an underappreciated cause of runners’ gut issues.
A 1942 army study revolutionized our understanding of the effects of heat and how to combat it.
Modest amounts of artificial sweeteners are unlikely to cause much gut distress, but sugar alcohols can wreak havoc.
Mindfulness meditation can enhance focus, boost racing performance, lower pain perception, and treat anxiety. Here’s what it is, and how to start.
But do they work to improve endurance performance? The evidence, so far, is mixed.
A high-fat diet may help reduce stomach distress for some athletes. Here’s how it works and when to consider trying it.
Practical advice on running and your immune system straight from the world’s leading exercise-immunity researcher.
It's time to embrace summer heat as a training tool. Here's how.
Here’s how to adjust your training in the heat, and help your body adapt so it can handle more.
Your gut follows a circadian rhythm just like the rest of your body. Learn how improving one can bolster the other.
Your DNA has a say in your caffeine buzz, but it’s still not clear how genes affect gut sensitivity to caffeine.
It’s bad enough sweating it out in scorching heat. Then comes stomach pain or irritated bowels.
The world's most widely used drug boasts some powerful beneficial for runners.
Australian researchers confirmed results of a previous trial finding that endurance athletes seem to train and race best on high-carb diets.
Study shows faster marathoners took in significantly more calories and fats—eating more nuts, seeds, fruits and vegetables—than slower marathoners.
Scientists and runners Matt Laye and Greg Grosicki delve into how the gut microbiome affects performance and how to optimize it.
New research supports what many runners do naturally, instead of the conventional wisdom that you should stay upright.
A new study out of the University of Montana finds that carbohydrates from just about anywhere do a good job of muscle glycogen recovery, as long as the numbers add up.
Simple breathing exercises can relax your nervous system and improve performance.
Exercise physiologist Shawn Bearden discusses pacing, training zones, the importance of judging effort and other aspects of his research into marathon and ultra running.
New research sheds light on the variables that determine when a trail or mountain runner should switch from running to walking uphill.
Why it's best to wait for the off-season to give blood.