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1. Going straight into your workout

You want to fit in your whole workout, but skipping your workout to do so is a huge mistake.

New York-based personal trainer Miriam Fried told us that about 90% of gym-goers she sees don't warm up. The other 10% are often doing random moves before going into their full-on workout.

"Plan on warming up whatever you're working on that day, and going through the range of motion that you're going to be going through," she said, noting that a good warm-up could last anywhere from five to 10 minutes.

"I get it: A lot of people are crunched on time, and they just want to get right into their workout," she said. "But it's 100% not worth the risk of the injury that can come with it, so it's worth giving yourself five minutes."

[Photo via Getty]

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