People had time to build houses, trade and fight - in other words civilisation was born.
More details emerge of a possible passenger fight-back on the plane which crashed in Pennysylvania.
As the oldest part of the brain, the amygdala prioritizes survival and regulates the fight-or-flight response.
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We're all going to have to fight - because we are fighters in Swilly.
That is why we fight -- in hopes of a day when we no longer need to.
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But fight-loving viewers have been gravitating toward MMA fights, put on by companies including Ultimate Fighting Championship.
Scientists have also discovered that humans apply our fight-or-flight reflexes not only to predators but to data itself!
And then you have the fight -- if you want to have the fight on the other issue.
When something new pops up, the reptilian brain goes into fight-or-flight, friend-or-foe sensing.
Lee and Yun theorize that anti-inflammatory drugs counteract the body's self-destructive response to heart failure by decreasing the body's fight-or-flight response.
That same fight-or-flight response that prevented us from being eaten by tigers also warns us when our mental selves are in danger.
"We fought the good fight--some things work, some things don't, " he said.
Now, activists have a new weapon in the fight - satellite technology.
These receptors, or tiny sensors on cells, interact with the fight-or-flight hormone adrenalin (also called epinephrine), dopamine, serotonin, light, flavor and odor.
Hemingway called it "death in the afternoon" and fight-goers think of it as la fiesta (a word that can mean feast, party or celebration).
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So I'll let him carry on and keep barking and barking because on fight-night I'm going to be the bad guy, I promise that.
The Scarlets fight-back began from the first whistle after the break.
Beta blockers work by reducing activity in the sympathetic nervous system, which is one of the two major branches of the body's stress (or fight-and-flight) system.
Croft was impressed, and he asked her to join him in another ethics fight -this time, a conflict of interest complaint against the state's Republican attorney general.
People will matter most in this fight -- we need entrepreneurial spirit and energy to come together with a whole new way of working in the world.
When we encounter ideas or information that contradict what we believe to be true, the brain perceives it as a threat and instantly shifts into fight-or-flight mode.
Jones admitted the fight would be his last as a light-heavyweight and that he was hoping to line up just one more fight - with Mike Tyson.
And Levein paid tribute to the part played in the fight-back by West Brom midfielder James Morrison, who had replaced misfiring talisman James McFadden after 45 minutes.
Robinson missed a late penalty attempt but Wasps secured their first win in a month as Bath ran out of time to have a chance of completing a fight-back.
If you want to know how he would feel if he were here today, he wouldn't fight -- no one fought for one side of this case or the other.
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But with Branson stepping on Murdoch's toes with an aggressive expansion into the media marketplace, the Australian-born tycoon looks ready for a fight -- which only one of them can win.
"The season will be long and hard, no doubt about that, but I love this fight -- it is because of this fight that I came back to Formula 1, " he added.
Scotland now have two weeks to recuperate before a trip to Dublin against an Ireland side who lost in France on Saturday, but who showed signs of resurgence with a thrilling second-half fight-back.
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