{"id":84921,"date":"2026-01-14T07:22:08","date_gmt":"2026-01-14T07:22:08","guid":{"rendered":"https:\/\/www.europesays.com\/ee\/84921\/"},"modified":"2026-01-14T07:22:08","modified_gmt":"2026-01-14T07:22:08","slug":"kosmoselend-muudab-aju-kuju-tervis","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/ee\/84921\/","title":{"rendered":"Kosmoselend muudab aju kuju | Tervis"},"content":{"rendered":"

Astronautidel on p\u00f5nev, kuid tervistkahjustav t\u00f6\u00f6.<\/p>\n

Ilus on k\u00f5rgelt vaadata maakera peale, kuid nagu praktiline kogemus ja teadusuuringudki osutavad, k\u00e4ib pika iluga kaasas lihaste atrofeerumine, luude h\u00f5renemine ja kehavedelike kerkimine.<\/p>\n

N\u00fc\u00fcd selgub, et astronaute kimbutab veel \u00fcks t\u00f5sine kehaline muutus, mis puudutab aju.<\/p>\n

Kui inimene p\u00fcsib Maa peal, siis aitab maakera raskusj\u00f5ud ajul paigal p\u00fcsida. Juba varasemaist uuringuist on ilmne, et raskusj\u00f5u puudumisel nihkub aju natuke \u00fclespoole, n\u00fc\u00fcdne uuring aga sedastab, et mitmes paigas muutub ka aju kuju.<\/p>\n

<\/p>\n

Rachel Seidler Ameerika \u00dchendriikidest Gainsville’ist Florida \u00dclikoolist ja ta kolleegid j\u00f5udsid seesugusele j\u00e4reldusele, kui tegid 26 astronaudi ajust magnetresonantspilte enne ja p\u00e4rast lendu Rahvusvahelise Kosmosejaama pardal.<\/p>\n

V\u00f5rdluseks pandi ka 24 vabatahtlikku katseisikut 60 p\u00e4evaks lamama 6-kraadisel kaldpinnal, pea pisut allpool jalgu, p\u00fc\u00fcdmaks j\u00e4ljendada kaaluta oleku m\u00f5ju kehavedelikele ja ajule.<\/p>\n

Selgus, et astronautide ja v\u00f5rdlusr\u00fchma liikmete ajupilt n\u00e4itas oluliselt erisuguseid muutusi. Astronautide aju oli rohkem \u00fclespoole liikunud kui kaldpinnal lebanute aju.<\/p>\n

Mida kauem astronaut kosmoses oli olnud, seda rohkem oli ka ta ajus muutusi m\u00e4rgata. Neil, kes olid orbiidil olnud aasta, oli kehaliigutusi kontrolliv ajukoore piirkond nihkunud umbes kaks ja pool millimeetrit \u00fclespoole.<\/p>\n

K\u00f5ik aju osad ei nihkunud seejuures \u00fchtlaselt. Selle tulemusel suruti aju \u00fclemised osad kokku, \u00fclej\u00e4\u00e4nud osad aga venitati v\u00e4lja.<\/p>\n

Katseis ilmnes ka, et mida suuremaid ajuosade nihkeid astronaudil esines, seda raskem oli tal maale naasnult kahel jalal seistes ja k\u00f5ndides tasakaalu hoida.<\/p>\n

Autorid m\u00e4rgivad \u00dchendriikide teadusakadeemia toimetistes<\/a>, et tulevastel kosmoselendudel ja nende ettevalmistusel tuleks nende ajumuutustega kindlasti arvestada.<\/p>\n

Kuigi m\u00f5ne kuu p\u00e4rast aju algne kuju enamjaolt taastub, tasub teadlaste s\u00f5nul ikkagi t\u00e4helepanelik olla.<\/p>\n","protected":false},"excerpt":{"rendered":"Astronautidel on p\u00f5nev, kuid tervistkahjustav t\u00f6\u00f6. Ilus on k\u00f5rgelt vaadata maakera peale, kuid nagu praktiline kogemus ja teadusuuringudki…\n","protected":false},"author":2,"featured_media":84922,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[6601,42114,26867,26,27,37,33,35,34,36,31,32,21,12948,28370,7017,28,29,19,25,24688,23,24,22,20,30],"class_list":{"0":"post-84921","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-uldised-uudised","8":"tag-aju","9":"tag-astronaudid","10":"tag-astronaut","11":"tag-breaking-news","12":"tag-breakingnews","13":"tag-ee","14":"tag-eesti","15":"tag-eesti-keel","16":"tag-estonia","17":"tag-estonian","18":"tag-featured-news","19":"tag-featurednews","20":"tag-headlines","21":"tag-kaaluta-olek","22":"tag-kosmoselend","23":"tag-kuju","24":"tag-latest-news","25":"tag-latestnews","26":"tag-news","27":"tag-populaarseimad-lood","28":"tag-rahvusvaheline-kosmosejaam","29":"tag-top-stories","30":"tag-topstories","31":"tag-uldised-uudised","32":"tag-uudised","33":"tag-viimased-uudised"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ee\/115892253000355701","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/84921","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/comments?post=84921"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/84921\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media\/84922"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media?parent=84921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/categories?post=84921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/tags?post=84921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}