Some of the soldiers who returned from Iraq suffered from post-traumatic stress disorder (PTSD). Since the soldiers already have PTSD, doctors can't prevent the formation of painful memories, but they can use to speed up extinction of painful memories.

DCS (d-cycloserine)

Explanation:

the culture of asia encompasses the collective and diverse customs and traditions of art, architecture, music, literature, lifestyle, philosophy, politics and religion that have been practiced and maintained by the numerous ethnic groups of the continent of asia since prehistory. identification of a specific culture of asia or universal elements among the colossal diversity that has emanated from multiple cultural spheres and three of the four ancient river valley civilizations is complicated. however, the continent is commonly divided into six geographic sub-regions, that are characterized by perceivable commonalities, like religion, language and relative ethnic homogeneity. these regions are central asia, east asia, north asia, south asia, southeast asia and west asia