FORT MYERS, Fla. Having a six-pack seems to be the international sign of fitness, but is doing AB specific exercises every day the best way to accomplish your goal? The answer may surprise you. Isolation exercises for your mid-section can actually cause posture problems, muscle imbalances, and leave you frustrated when you aren’t seeing your hard work pay off. Increasing core strength should be a top priority for everyone, but doing countless crunches may be hindering more than helping your progress. Wink News Fitness Expert Mike Drumm is here today with 5 Reasons NOT to work out your abs every day.