Answer:
Stimulant
Explanation:
Caffeine is considered as stimulant drug (meaning it helps speed up the messages between the brain and the body) and that's the reason why people usually use it to get more energy or to feel more awaken. However, this drug not only keeps you awake but is also a central nervous system stimulant and a brain stimulant. The same happens with energy drinks, since one of the main ingredients in all of them is caffeine, making them also an stimulant drug.
In this example, Gloria needs caffeine to function normally and can't get through the day without it. Therefore, she is dependent on stimulant drugs.
