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Different workout styles can get you equally fit, but they affect your body differently—which suggests that you should mix it up
A new way of classifying athletes aims to quantify the thresholds that distinguish recreational athletes from their trained, highly trained, and elite brethren
Our Sweat Science columnist spent two months measuring his blood sugar around the clock. Here’s what he found.
The latest “exercise in a bottle” study finds that plasma from exercising mice makes sedentary mice smarter. But don’t throw out your workout gear just yet.
Over the past decade, research into compression sportswear has exploded. Here’s what the results reveal.
It’s time to break out the merino base layers and the heat-exchange breathing masks
A selection of (mostly) new titles for fans of science, endurance, fitness, and adventure
The genes that make some people vulnerable to a fatal heart stoppage may be the same ones that give them an athletic edge, researchers suggest
Sports medicine physicians are rethinking the relationship between damage to your body and how it feels
As skimo prepares for its Olympic debut in 2026, sports scientists explore the sport’s demands
Your GPS watch and other gadgets are great at describing training, but prescribing it is a harder challenge
A mathematical model explains how endurance and speed come together to determine who will win a last-lap sprint
A new study quantifies the effects of running on technical terrain
A new study uses machine learning to quantify the effects of temperature, humidity, heat, and sun
Scientists take their equations for the energy demand of hills and rough terrain out into the real world
The link between serious cycling and poor bone health is well established, but researchers are still debating what to do about it
The physiological differences between men and women affect how much fluid they store, how they sweat, and how quickly they heat up. Does that matter?
Yes, people sometimes die while running. No, that doesn’t mean running is “dangerous.”
A new study investigates how different types of physical performance are affected by the time of day
The case of 24-year-old Daniel Granberg, who died of high-altitude pulmonary edema earlier this month, highlights the danger of altitudes well below the Himalayan “death zone”
A new study suggests that hydrogels enable you to down more carbs with less digestive distress, and race faster as a result.
A new app called NatureQuant harnesses the latest research to track and rate your time outside. Next up: determining how much you need.
A new study measures the physical and cognitive load of four different treading techniques. The key? Generate lift.
Regular exercisers drink more, a new study confirms, but are less likely to be problem drinkers
Supersapiens’s new continuous glucose monitor promises to help athletes manage their energy levels. But can it really stave off a bonk?
A long-running gym debate about whether to train each limb separately comes to the cycling world
A new study of Western States ultrarunners illustrates the power of looking beyond simple risk factors to predict injury
Scientists have been debating whether muscles contract more slowly as you age, but new data suggests the real problem is a loss of strength
After years of debate on the dangers of “too much exercise,” researchers sum up the state of current knowledge
Exercise and digestion often don’t mix well, but scientists are on the case
Israel Start-Up Nation’s physiologist Paulo Saldhana explains the data—and the feelings—that determine who attacks when in a cycling race
It’s the simplest and cheapest performance booster available, so why don’t elite athletes take advantage of it?
Five years after the Vaporfly upended marathon running, track shoes are set to star in Tokyo
New research fine-tunes the details of heat adaptation
A new study shows measurable gains in strength from a purely imaginary training program
The physiology of events like the Ultra-Trail du Mont-Blanc is radically different from “short” events like the marathon
Instead of focusing on joint angles and limb movements, a new study takes a holistic approach to the biomechanics of elite runners
Dealing with discomfort isn’t a magical gift. It’s a skill, and you can improve at it.
New research sifts through the evidence to figure what types of intervals make you fastest
The mile isn’t just another race distance. It’s almost its own sport.
Exercise causes pain, but it also dulls it. Researchers are still trying to understand how that works.
A new study tests how much cycling it takes to maximize cognitive function in endurance athletes
The latest deaths raised questions about the role of COVID, but analyses of nearly a century’s worth of climbing records suggest some consistent patterns