Answer:d.acts as a sedative
Explanation:
Caffeine is a stimulant. It has a stimulating effect on the central nervous system. It has a ability to suppress the brain receptor like adenosine.
The inhibition of adenosine will lead to suppression of sedative effects it causes.
Even low doses of caffiene can reduce drowsiness and fatigue.
One should avoid or limit caffeine because it is mildly addictive, it may cause irritability, and it may cause sleeplessness. But caffeine is not a sedative.
Answer: D. Act as a sedative
Explanation:
Caffeine provides no nutritional value on its own. It’s tasteless, so you won’t necessarily know if it’s in your food either. Even some medications may contain caffeine without your knowledge.
This ingredient almost always causes some symptoms. At a minimum, you may feel more energetic, but over time, too much caffeine may cause withdrawal symptoms. As you consume the same amount of caffeine on a daily basis, your body develops a tolerance to it. Other factors like your age, body mass, and overall health can determine your tolerance to caffeine, too. If you want to decrease the amount of caffeine you take, it’s best to decrease your consumption slowly.
