text: When i had a car I was always tense. I'm much happier this way..." (Source 1) Cars, in my opinion, it a accident waiting to happen. Car accidents, Hit-and-runs and all types of other indcidents with cars are a big stresser. Walking is much safer if you take the right precautions. You can get the exercise you need without the hassle of going on Weight Watcher or Jenny Craig. Just put the keys down for a day and walk!