FitSpirit explores the mind-body connection and the intangible benefits we gain from our efforts to stay physically fit.

I once sat in a job interview just after college and listened to two young employees talk about their boss. She has great balance, they said about the woman I might work for. A great supervisor, a super mom, a valued member of her profession, this woman had it all together. What I heard was compelling. It made me want the same. Now, 13 years later, I still want the same thing. Sometimes, I think I have it. Sometimes, the balls I'm juggling seem to be tumbling down around me.

Perhaps it's not so much about balancing everything all at once. Maybe it's more about working on one item at time. Building a solid foundation is necessary for any structure that follows to have stability, right? First things first. Take the human body. If we wish to have successful jobs, happy families, and rewarding lives, our immune systems must be in good working order. So before you try to keep your balls in the air, consider laying your own solid foundation. Here's how:

• Breathe. Learn to breathe properly for a healthy immune system.
• Eat. But only small, frequent meals.
• Sleep. Studies show women who sleep only six hours or less per night are 20 percent more likely to suffer heart problems.
• Dance. Rhythmic exercise is more beneficial to the immune system than other kinds of exercise.
• Love. It's the antidote for negative emotions. Find ways to cultivate love in your life.
• Relax. A calm environment is soothing for your immune system. Listening to music can modulate immune system response.
• Enhance.Take vitamins and supplements appropriate for you. Vitamin D is a good one -- it promotes immune-system health.

I never did get that job. But I got something from the interview that's kept me thinking for a long time now. For that, I am grateful.