Rather than comparing the availability of modern conveniences, it's more informative to compare stability. Are modern lives more stable in the face of unexpected events than historic lives? Is getting sick for a few days and then getting better worse now, or worse historically?

I would argue that the levels of instability make modern stresses higher. Even though there are many luxuries to help deal with these stresses, they are maintained only tenuously. The slightest disruption to a break-even lifestyle can result in disaster, and even if everything goes perfectly there may not be any spare cash to save for an eventual escape.