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Could Occasionally Cutting Carbs Make You Faster?
Plus: Carbon shoes improve efficiency; when (and why) cardiac deaths occur; sleep and injury risk; money as a performance enhancer; and high-volume…
Feb 12
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Brady Holmer
6
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Why Doesn't Training Increase Our Max Heart Rate?
A new theory on what limits aerobic capacity.
Feb 5
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Brady Holmer
15
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An Unexpected Finding on What Does (and Doesn't) Cause Heart Arrhythmias in Masters Athletes
Training matters less than you think.
Jan 29
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Brady Holmer
19
3
Why Some Runners’ Hearts “Stress Out” More after a Marathon
Plus-CBD makes you faster; predicting stress fractures in female runners; pre-run protein; the "small calf" advantage of Kenyan runners; and estimating…
Jan 22
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Brady Holmer
7
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This 80-Year-Old Runner Redefines Physiological Limits to Aging
What does it take to hold a world record as an octogenarian?
Jan 15
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Brady Holmer
21
3
Can Baking Soda Give Your Workout a Boost?
Plus—Underfueling in trail running; a comprehensive guide to cadence; do protein supplements work?; why to cultivate “bodily awareness”; uphill vs…
Jan 8
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Brady Holmer
11
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Why Runners Have Extremely Low Heart Rates—Is It Training or Genetics?
Should you worry about athlete’s bradycardia?
Jan 2
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Brady Holmer
12
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Could Too Much Running Hurt Your Brain?
Exercise is medicine. But what's the limit to its benefits?
Dec 26, 2025
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Brady Holmer
5
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