Answer:
unwillingness to discuss a particular subject
Explanation:
That involves a choice by the person mentally.
"The Marine Corps endorses unofficial posts made by marines in any form of social media. Marines are NOT allowed to solicit votes of any kind on social media. Any content about the Marine Corps or related to the Marine Corps that are posted on any Internet site by Marines in any personal capacity.
Consequently, every Marine, officer or enlisted, receives basic infantry training. A course is provided that trains about the do's and don'ts of interacting with social media, giving Marines the guidelines for posting any content online.
Marines serve on U.S. Navy ships, protect naval bases, guard U.S. embassies and provide an ever-ready quick strike force to protect U.S. interests anywhere in the world. They often serves as a quick reaction force and has special units that are trained to respond to crises wherever necessary. In fact, the branch is sometimes referred to as the “tip of the spear,” because these combat-ready units typically spearhead conflict operations."
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Cardiovascular System
In addition, the blood vessels that direct blood to the large muscles and the heart dilate, thereby increasing the amount of blood pumped to these parts of the body and elevating blood pressure. ... This long-term ongoing stress can increase the risk for hypertension, heart attack or stroke.
