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Deset zanimljivosti o ljudskom tijelu koje niste znali

Donosimo vam deset naučno dokazanih zanimljivosti o ljudskom tijelu koje sasvim sigurno niste znali.

Ljudi sjaje u mraku – Japanski su istraživači veoma osjetljivim kamerama otkrili kako naša tijela emituju male količine svjetlosti koje su previše slabe da bi ih ljudsko oko registrovalo. Iako je odavno poznato da sva živa bića proizvode malu količinu svjetlosti, kao posljedicu hemijskih reakcija u stanicama, japanski su naučnici prvi put to uspjeli dokazati i zabilježiti.

Tijelo proizvodi aspirin – Konzumiranje voća i povrća ljudskom tijelu može pomoći da napravi lični aspirin. Jedno je istraživanje pokazalo kako ljudsko tijelo od kiseline iz voća i povrća proizvodi salicilnu kiselinu, ključnu komponentu koja aspirinu daje antiupalna i svojstva protiv bolova.

Tijelu se spava baš onda kada ste na poslu – Drijemanje u trajanju od 20 minuta može poboljšati ukupnu budnost, pojačati raspoloženje i povećati produktivnost. William Anthony, autor knjige Umjetnost drijemanja na poslu, tvrdi kako pozitivan utjecaj kratkog spavanja može trajati i nekoliko sati. Zato, ako vas šef zatekne da ste zadrijemali na radnom mjestu, pozovite se na ovu činjenicu.

Ujutro smo viši nego naveče – Možda je bolje da košarku igrate u jutarnjim satima


jer su naša tijela tada u prosjeku za centimetar viša nego naveče. Možda zvuči čudno, ali dodatnu nam visinu daje količina tekućine između diskova kičme koja se tokom noći obnavlja dok spavamo.

Orgazam izaziva kihanje – Neki muškarci nakon ejakulacije osjete glavobolju, a ponekad počnu i kihati. Povećana aktivnost u živčanom sistemu može biti krivac za glavobolju, a za kihanje blizina centra za orgazam i onoga za zijevanje i kihanje u mozgu.

I jezik ima jedinstven otisak – Baš kao i otisci prstiju, otisak jezika je drugačiji kod svake osobe. Zbog jedinstvenosti oblika i fiziološke teksture svakog jezika, on je koristan pri utvrđivanju identiteta.

Koža je najdeblja na stopalu – Koža je najdeblja na dlanovima i tabanima, a njena debljina na ovim dijelovima tijela iznosi četiri milimetra. Takođe, koža u ovim dijelovima ima najviše znojnih žlijezda.

Slijepo crijevo nije beskorisno – Dugo se smatralo da je slijepo crijevo u potpunosti beskoristan organ, no ono zapravo ima svoju funkciju. Slijepo crijevo, naime, predstavlja ‘sigurnu kuću’ za korisne bakterije koje žive u ljudskom stomaku i potiču probavu.

Položaj tijela utiče na pamćenje – Ne možete se sjetiti godišnjice zaruka? Probajte kleknuti na koljena! Jedno istraživanje koje je proučavalo pamćenje otkrilo je da se ljudi bolje sjete kada se nešto dogodilo ako stanu u položaj u kojem su bili u trenutku tog događaja.

Plavuše imaju više kose – Ne znamo jesu li zabavnije, ali istraživanje kaže da plavuše imaju više kose. Boja kose, otkriva drugo istraživanje, određuje i gustoću kose. Prosječna ljudska kosa ima sto hiljada korijena dlake od kojih svaki može proizvesti dvadeset pojedinačnih vlasi tokom cijelog života. Plavuše u prosjeku imaju 146 hiljada folikula, a ljudi s crnom kosom oko 110 hiljada. Najmanju gustoću kose, odnosno manje od sto tisuća folikula, imaju riđokosi.

Izvor: Cafe.ba

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