4. Being Too Social. "Social support is great," says Trese. "Knowing that a familiar face will be there at the same time" can keep you going with your exercise regimen. "But you don't want to make it just a social hour."
When walking on treadmills with a companion, Lockhart suggests agreeing to chat during the warm-up and cool-down, but to stay quiet and commit to pushing yourself for the time in between.
"Work at an intensity that burns significant calories and is too high to carry on a full-blown conversation," Lockhart suggests. When you work out with a friend or friends, set some rules first to be sure everyone stays on track with time, Trese advises. Try doing 8 to 10 exercises in 30 minutes, and resting no longer than a minute between exercises.