Stress can also lead to bad food choices and abandoning your exercise.
So...try to keep stress at a minimum...Don't overextend yourself. While there always seems to be so much to do -- business parties, family gatherings, neighborhood socializing, school functions -- prioritize the most important to you, and say no to the others.
Need more ideas? Visit About.com's Stress Management Guide Elizabeth Scott's web site for stress management tips and suggestions.