Up to 20 Percent of Military Veterans Returning from Combat

question 106

True/False

Up to 20 percent of military veterans returning from combat develop post-traumatic stress disorder (PTSD), including soldiers involved in combat in Iraq and Afghanistan.

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Definitions:

Precipitation

The process by which a substance in solution undergoes a chemical reaction to form a solid, which then separates from the solution.

Biological Activity

The effect of a substance on living organisms, tissues, or cells, indicative of its potential therapeutic effects or toxicities.

Tertiary Structure

The three-dimensional shape of a protein molecule determined by interactions among its amino acids' side chains, beyond simple folding.

H-Bonds

Hydrogen bonds, a type of weak chemical bond that occurs when a hydrogen atom covalently bonded to one electronegative atom is also attracted to another electronegative atom.