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More on Chris McDougall’s barefoot running article

Clearing the air on some differences of opinion and fact.

“The one true way to run?”

Chris McDougall is a great advocate for running, but the shoes vs. barefoot debate is more nuanced than he acknowledges.

Another reason to run in the morning

Your body’s ability to repair damage from UV rays peaks early in the morning, then declines through the day.

The slowdown of age: mental or physical?

New research suggests that declines that once seemed “inevitable” may be partly explained by changes in training patterns.

Surprise: runners don’t get less efficient as they age

A new University of New Hampshire unexpectedly finds that running economy stays roughly the same as you age.

Should shorter legs take quicker strides?

The optimal running cadence does depend on leg length — but not exactly how you might expect.

Beet juice vs. nitrate supplements

New study finds that you can’t skip the beet juice and still get the same effects.

Being a bit overweight doesn’t help you live longer after all

New data from clean-living Seventh Day Adventists overturns earlier findings about the benefits of being a bit chubby.

Brain endurance, mitochondria, and the desire to run

A new study suggests that aerobic exercise causes new mitochondria to grow in your brain as well as your muscles.

The science behind the paleo diet

It’s a lifestyle, not a diet — and it’s not a license to eat nothing but meat.

Why neither “normal” nor minimalist running shoes will disappear

Different types of running shoes serve different needs, so we’re unlikely to reach a universal consensus.

Full-body compression gear makes your heart work harder

A new study finds that full-body compression gear doesn’t boost performance, and may even make you work harder.