Science & Outdoors
The science of going long. Trailhead’s Science & Outdoors section covers the research and reporting behind trail and ultrarunning — exercise physiology, nutrition studies, environmental coverage of the places we run, conservation and public-lands reporting, and the latest peer-reviewed findings translated for actual runners. From heat acclimation science to trail stewardship, this is where curiosity meets the start line. Brought to you by UltraSignup, the world’s leading trail running registration platform.
Curious where the science meets the trail?
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Should Long-Distance Runners Be Worried About Colon Cancer?
Runners often normalize GI distress and brush off symptoms that can also the most common early warning signs of colorectal cancer. Should we be concerned?
Zoë Rom
March 24, 2026
Why Ultrarunners Face a Higher Risk of Skin Cancer and Decreased Running Performance
With the rise of multi-day ultras, runners are logging serious sun exposure—not just on race day, but during training too. Without proper protection, they're at greater risk for UV damage.
Colleen Miracle
May 1, 2025
The EXPLORE Act is a Win for Runners and Public Lands
The EXPLORE Act enhances trail access, maintenance, and event permitting while supporting conservation and economic growth. Here's what trail runners and race directors need to know.
Zoë Rom
January 29, 2025
The Forest Service Isn’t Hiring Seasonal Staff. Here’s Why Trail Runners Should Get Involved.
A budgetary shortfall has led to a hiring freeze that will impact trail runners and race directors alike. Here’s what we can do about it.
Zoë Rom
December 2, 2024
The Benefits of Trail Running
Is trail running really that good for you? Here’s what the science says.
Zoë Rom
November 5, 2024
The race to sustainability
In the most important race, trail running has a secret weapon — its runners.
Jessica Bernhard
December 23, 2022