To start off, it’s a stimulant so it keeps you very alert in times when you would naturally feel tired or sluggish. The jolt given to your nervous system can suppress fatigue and improve ones’ mood. This occurs because the caffeine increases your heart rate and as that increases, the body circulates more blood and could potentially speed up your metabolism (Olsen, 2014). Additionally, when caffeine is consumed in moderation there are actually quite a few health benefits. David Elmenhorst, lead author of the study and researcher for the Institute of Neuroscience and Medicine explains that “there is substantial evidence that is protective against neurodegenerative diseases like Parkinson’s or Alzheimer’s disease” caffeine can also decrease the risk of heart disease, and greatly improve people mood (qtd. In Olsen, 2014). Caffeine not only keeps you awake and feeling a little less grouchy through the longest of nights, it also has an abundance of legitimate health