I know that my two hard-charging, runner buddies Slick and Spinster Beth are pretty serious about their workout schedules, and both have 9-5 jobs they hold every day as well. I have a job too, but it is certainly not 9-5 and my "bosses" can make things difficult to get to the gym. Getting a good workout in, unfortunately, rarely means getting an elevated heart rate. I can get a bit of a weight-lifting workout in with the "Grow With Me" weight system (aka: 5 kids), but try taking a "fast" walk with kids all around!
So to counterbalance the lack of steady exercise, I pay closer attention to keeping my immune system strong. I am a pretty Crunchy person. I don't like going to the doctor, don't like immunizations (a whole 'nother story), I don't like pills - whether prescription or over the counter - you get the idea! So I tend towards holistic methods for health care, for me and the children!