fight

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Related to fight off: fight shy of

fight

or

flight response

The general activation of the sympathetic nervous system in response to stress.
References in periodicals archive ?
Reigning world drivers' champion Torrente had to fight off a spectacular challenge from team-mate Thani Al Qemzi who finished in second place as the Team Abu Dhabi duo scored a brilliant one-two finish in Portimao for the second year in a row.
To accomplish their function, NK cells require more energy than normal cells to fight off tumors.
Referee Yuji Shimada called the fight off at the 4:58 mark of the middle round.
Her gran tried to fight off the dog, which sank its teeth into the girl after savaging the family's pet dog.
A shopkeeper suffered a fractured skull in a machete attack but still managed to fight off his two assailants.
It could also help the elderly whose immune system becomes less effective as they age, making it harder for them to fight off even common diseases.
| Michael Roue lost part of his finger when he tried to fight off an axe man in his parents' shop.
Chilly winter weather alone does not cause colds, but cold weather may numb the body's ability to fight off cold viruses.
CHILLY WEATHER IS NOT THE SOLE CULPRIT IN COLD SEASON, but it does numb the body's ability to fight off cold viruses.
Prime Minister Nouri al-Maliki has been criticized for his inability to fight off the Islamist militants.
Most people infected with HIV do not have neutralising antibodies that can fight off the infection and rely on antiretroviral drug therapy to prevent AIDS stage.
The 64-year-old managed to fight off his assailant who fled the scene, police said.