You want to keep up with hard-core runner friends.

The fix:

Witnessing others’ workouts and racing success can tempt you to emulate their routine, even if it’s more than your body can tolerate.

Runners often think that motivation and extra effort will recalibrate their bodies, but they might not. Ask yourself how interaction with more serious athletes makes you feel.

If you dwell on your differences, you’re better off limiting workouts with the speed demon to once every couple of weeks (or months). And keep the running talk to a minimum whenever you’re together.

Save the competition for race day.

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