{
  "$type": "site.standard.document",
  "bskyPostRef": {
    "cid": "bafyreiefl6greai4xysp6af2lucf6woxk5rxlznivwcg43y26wq4un7w5q",
    "uri": "at://did:plc:xc32dedgv3ceunwz2nrseso4/app.bsky.feed.post/3mh26bcrvrxt2"
  },
  "path": "/x/b24325f5864dfb21?ref=rss",
  "publishedAt": "2026-03-14T19:18:27.000Z",
  "site": "https://upstract.com",
  "textContent": "Keeping astronauts strong and healthy in microgravity is no easy feat. Those serving six-month missions aboard the International Space Station must exercise for two hours per day to stave off muscle loss. Pinpointing the level of microgravity at which atrophy begins would therefore be hugely…",
  "title": "New Research on Muscle Loss Suggests Humans Will Really Suffer on Mars"
}