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.
The fight or flight response is a complicated systemic reaction. These are just some of the instantaneous messengers and physiologic changes involved. In fact, the initial perception of a threat or danger is also received by an area in the brain stem that begins yet another axis of communication and response involving the release of the messenger norepinephrine.