Stress is our bodies' biological reaction to danger or threat. Early humans developed a stress response that helped them get out of harmful situations. When the brain senses
danger, it releases stress hormones like adrenaline and cortisol. These hormones cause
changes in the body to prepare us for "fight or flight”—to tackle the problem with extra
strength, or run away fast. For example, if your ancestor spotted a dangerous animal, she
may have felt her stomach sinking as her blood left her digestive system and went to her legs
so she could run faster. She would breathe faster to get more oxygen for running. Extra
sweat would help cool her down as she ran. Her pupils would get bigger to help her see in
the dark
Which of these is not a physical stress response?
A
Blood redirects to the legs to increase running speed and strength.
B.
Breathing becomes faster to get more oxygen into the lungs.
С
Pupils dilate to let in more light.
D
Sweat production decreases to create less resistance when running.