{
  "id": 7818852,
  "title": "How older siblings may shape sexual orientation via mother’s immune system",
  "url": "https://urgent.news/2026/09/16/how-older-siblings-may-shape-sexual-orientation-via-mothers-immune",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-16T15:50:33.000Z",
  "source": {
    "name": "New Scientist",
    "slug": "new-scientist",
    "url": "https://www.newscientist.com/article/2588874-how-older-siblings-may-shape-sexual-orientation-via-mothers-immune-system/"
  },
  "original_language": "en",
  "account": null,
  "summary": "It has long been observed that men with older brothers are more likely to be gay, but an association has also been found with older sisters. This sheds further light on how a mother's immune system may be involved in shaping sexual orientation",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}