Utorak, 3 Februara, 2026
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HomeDruštvoZdravljeNaučna studija otkriva u kojoj godini života telo počinje naglo da stari
Zdravlje

Naučna studija otkriva u kojoj godini života telo počinje naglo da stari

Zdravlje50 views

 

Proces starenja je individualan i razlikuje se od osobe do osobe. Dok neki već u ranim godinama primećuju sedu kosu i bore, drugi zadržavaju mladolik izgled i u kasnijem životnom dobu. Ipak, jedno istraživanje je pokazalo da postoje dva perioda u životu tokom kojih ljudi naglo stare.

Istraživanje sa Stenforda

Tim naučnika sa Medicinskog fakulteta Univerziteta Stenford pratio je više od 135.000 bioloških markera kod 108 ispitanika tokom nekoliko godina. Istraživanje, koje je predvodio Majkl Snajder, šef Odeljenja za genetiku, pokazalo je da se značajne promene u organizmu ne dešavaju postepeno.

Analizirane su promene poput sposobnosti razgradnje alkohola i kofeina, metabolizma, kao i verovatnoće razvoja kardiovaskularnih bolesti. Rezultati su pokazali da se čak 81 odsto molekula povezanih sa starenjem menja po nelinearnim obrascima.

 

 

Dve ključne životne prekretnice

Umesto da starenje teče kao kontinuiran proces, molekularne aktivnosti povezane sa starenjem prolaze kroz nagle i ubrzane promene u dva jasno određena životna perioda: oko 44. i oko 60. godine života. Rezultati ovog istraživanja objavljeni su u stručnom časopisu Nature Aging.

Uloga životnog stila

Iako studija nije utvrdila konkretne uzroke ovih promena, naučnici ističu da promene u načinu života u tim periodima mogu igrati značajnu ulogu. Na primer, u srednjim godinama često dolazi do povećane konzumacije alkohola i višeg nivoa stresa, dok se s godinama kvalitet sna pogoršava, što može negativno uticati na zdravlje kardiovaskularnog i imunološkog sistema.

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