Compare College Savings Options. There are a number of investment accounts you can use to help save for a child's education. Each offers different features and benefits and can be opened by a friend or relative on behalf of a child. 1.
The fight or flight response is a catch-all phrase describing the body's response to stress. 1  Fight or flight refers to the two choices our ancestors had when facing a dangerous animal or enemy.
To produce the fight-or-flight response, the hypothalamus activates two systems: the sympathetic nervous system and the adrenal-cortical system. The sympathetic nervous system uses nerve pathways to initiate reactions in the body, and the adrenal-cortical system uses the bloodstream. The combined effects of these two systems are the fight-or-flight response. When the hypothalamus tells the sympathetic nervous system to kick into gear, the overall effect is that the body speeds up, tenses up and becomes generally very alert. If there's a burglar at the door, you're going to have to take action -- and fast.