{
  "annotation_id": "9712f377-e8cb-4785-a7d0-04b4d258d214",
  "date_created": "2026-03-02T18:01:31.022000Z",
  "date_modified": "2026-03-02T18:01:31.022000Z",
  "file_hash": "818a32434bca44cb3d81b545ba6ef0c1e3e63c247e569480f91a6d906ae78836",
  "private": false,
  "record": {
    "abstract": "Are there limits to human longevity? We suggest a new demographic model to\ndescribe human demographic trajectories. Specifically, the model mathematically\ndefines the limits of longevity. Through the demographic analysis of trends for\nSweden (between 1751 and 2002), Switzerland (between 1876 and 2002) and Japan\n(between 1950 and 1999), which are the longest-lived countries, we would like\nto demonstrate whether or not there is the ultimate limit to longevity. We\nanalyse the trends of new demographic indicators, the characteristic life and\nthe shape parameter, and calculate the mathematical limits of longevity. We\nfind out the surprising phenomenon that the mathematical limits of longevity\ndecrease as the longevity tendency increases in recent decades. These\nparadoxical trends will be explained by the complementarity of longevity, which\nis attributable to the nature of biological systems for longevity. According to\nthe regression analysis, the ultimate limit for humans is estimated to be\napproximately 124 years, which may be considered to be the biological limit for\nhumans.",
    "arxiv_id": "q-bio/0404026",
    "authors": [
      "Byung Mook Weon"
    ],
    "categories": [
      "q-bio.PE"
    ],
    "title": "Ultimate limit to human longevity",
    "url": "https://arxiv.org/abs/q-bio/0404026"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "befb801a-bb61-40a9-b0a3-a0dd28db7770",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}