Why do we wait until we are sick?

I was pondering today some of the things we are doing for our health. I wished that we would have known about them before and done them to prevent sickness. Why do we wait until we are sick to do things for our health?
What we did today:

1. We went for a 20 minute walk: saw a smiley dog off his leash. Hubby commented: that the lady was sinning because the dog shouldn't have been off the leash.
2. Ate a healthy breakfast: Ezekiel Bread toasted, organic boiled eggs, organic grapefruit, juice. Hubby turned nose up at the grapefruit but ate the rest. I ate ate hubby's grapefruit. I am just happy that he is eating breaky now:)
3. We did 30 minutes of the zappicator and 5 mins of the zapper. Hubby notices that he is feeling better and is having lots of big poops.
4. Showered with Miessence so we are not putting toxins back in our bodies as we take them out! Hubby is not obeying yet but I am loving the wonderful feeling of the the shower and bath products. The deodorant is heaven!