Obesity Actually Saves Us Money On Healthcare! The reason why WILL NOT shock you! They die faster, so their lifetime costs as individuals is lower. http://journals.plos.org/plosmedicine/article/asset?id=10.1371/journal.pmed.0050037.PDF Naturally the study doesn't cover all of the other costs associated with being obese, like being a less efficient worker and having no energy to contribute to your community.