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.
Fight or Flight. 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.