20. Failing to follow a plan
Going to the gym without a plan is like going to the grocery store without a list. You’ll probably just wander around aimlessly doing random crap. Sure, you’ll get a workout in, but is it a good workout? Hard to say.
21. Giving unsolicited advice
Are you a trainer? Are you a trainer employed by the gym? Are you a trainer employed by the gym who is on duty? No? Then keep your mouth closed.
22. Skipping cardio… or skipping strength work
Cardio is important. Strength training is important. While you don’t need to do both during every workout, always skipping one or the other is a bad idea.
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Laura Williams is an exercise physiologist and fitness writer who wears headphones at the gym so she won’t have to talk to anyone. Talk to her on Twitter instead @girlsgonesporty.