Download "Le trac et la réponse combat-fuite - Flash 07 - e-penser"

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Le trac, c'est un petit peu comme une allergie. En fait, c'est une réponse naturelle de défense de votre corps humain face à une menace qui n'existe pas.

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Le trac et la réponse combat-fuite

1:43

L'irrigation des organes vitaux

2:04

Les conséquences du trac

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bruce benamran

e-penser

science

vulgarisation

olympia

exoconférence

alexandre astier

tournée

trac

adrénaline

flight or fight

combat

fuite

trouille

danger

menace

cerveau

réaction

allergie

Fight-or-flight Response

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Stage fright is kind of like an allergy:

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It's a natural defensive response of your body

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against a "threat", which doesn't actually exist.

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[Stage fright and the fight-or-flight response.]

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Stage fright is a common thing in the world of show business

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but also in the professional world,

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when someone has to speak in front of a lot of people.

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The brain sees well that speaking all of a sudden to a lot of people,

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when you're not prepared for it,

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can be a very traumatizing experiment.

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And so it perceives that as a danger.

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And when it comes to danger, the brain doesn't pull any punches

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and he triggers what we call:

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"the fight-or-flight response"

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When you are confronted to a danger,

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your brain decides very quickly,

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and on its own,

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whether you are going to fight the danger

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or if you are going to run away from it.

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In any case, it knows that it will need a lot of energy,

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so it will focus the energy

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in everything that's important for the fight or for the flight.

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And for that, it needs a brutal release of epinephrine.

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At first, everything that's not important is slowed down, if not stopped!

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Digestion amongst others, and that makes us want to puke,

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Or at the very least, gives us butterflies in the belly,

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that's really the least you can expect.

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Then, since the point is to brutally give more energy,

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and especially to the muscles,

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you'll need more oxygen.

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So your breathing rate will increase,

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along with your heart rate,

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to make the blood flow faster.

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And so you'll start to gasp, like that.

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Moreover, the blood flowing through your body will warm it up,

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so you'll start to sweat.

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And since your body temperature goes up,

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a phenomenon called "piloerection" occurs.

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In other words: you'll have goosebumps

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to regulate your body temperature.

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Your brain will also tend to

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irrigate your vital organs more naturally,

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and so your extremities will be less irrigated,

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so your extremities will get colder and colder.

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That's to say the hands, the feet, the nose, the ears,

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they'll all get colder.

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That comes from a constriction of the blood vessels.

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So there, the capillaries will *squish*, like that.

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So at that point there's not much blood flowing there.

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Of course, in such cases you'll need perfect reflexes and acuity,

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So your reflexes will immediately improve

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and be much more functioning.

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But it comes with a price!

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For that you'll suffer a partial loss of hearing,

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and you'll get tunnel vision.

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That means you'll lose a lot in peripheral vision.

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Because of the epinephrine, your pupils will dilate

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just like if you were high, that's normal.

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And the whole thing will naturally cause your muscles to contract,

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whereas you'll tend —artificially this time— to loosen them up,

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so you'll start to shiver.

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By the way, you may also have a bitter taste in your mouth:

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that's epinephrine!

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In fact, if you want to know how it tastes,

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the next time you go to the dentist

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when you're under anaesthetic,

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the bitter taste going down your throat

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— because there's always one or two drops falling —

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that's epinephrine.

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Most professional comedians try to control the epinephrine level in their bodies,

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they let it overflow them, but not too much,

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in order to be tensed just right enough

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before going on stage.

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That's an art!

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That's one hell of a thing to do.

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But since it's the 16th September,

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my last time on the stage of the Olympia before the 6th December,

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and that today my channel turns two,

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and that I just passed half a million subscribers.

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— Thanks to you all —

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I figured this was a perfect subject for today.

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So thank you all for being so much, and more and more,

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for we are now more than half a million

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— half a f*cking million! —

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on the two years anniversary!

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Personally, I'll keep working

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To make you new cool stuff

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— hope you'll like them —

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And you, stay curious,

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and take some time to e-penser (e-think).

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#Subtitles: Edouard Goovaerts.

Description:

Abonnez-vous : https://www.youtube.com/user/epenser1?sub_confirmation=1 Une question qui se pose, que ce soit quand on monte sur scène ou, plus prosaïquement, quand on tombe amoureux... Restez curieux, et prenez le temps d'e-penser. https://www.youtube.com/epenser1 - https://www.facebook.com/unsupportedbrowser - http://twitter.com/epenser - https://en.tipeee.com/e-penser © e-penser Les dates de l'exoconférence : http://www.raindogprod.com/alexandre-astier/lexoconference-tournee/ Les T-Shirts exoconférence seront en vente sur place :)

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