Yes, but you could always keep a diary log on your phone or tablet, it's much easier and faster, along with counting calories, remembering what your goal is.
Answer:
Adenosine.
Explanation:
Adenosine is a neurotransmitter that is created in the brain and when it binds to the adenosine receptors, it slows down nerve activity and it creates a sensation of drowsiness.
<u>Caffeine</u> looks like adenosine to the receptors, therefore, when we have caffeine, <u>it binds to these receptors and there is no room left for the adenosine to bind</u>. However, the caffeine doesn't slow down nerve activity but, in the contrary, it speeds it up.
Therefore we can tell that caffeine blocks the receptors for the adenosine thus promoting wakefulness.
Vegans are deficient in some nutrients like animal proteins, creatine, Carnosine, and docosahexaenoic acid (DHA). So the answer is D.
