Stanford -- Caffeine may counter age-related inflammation

Stanford researchers provide more evidence caffeine can lower heart disease via an anti-inflammatory effect.  Inflammation, especially as you age, sets the ideal environment for heart disease, arteriosclerosis, etc. to play out.  A great example is one of the most common issues that affects most North Americans as they age, but somehow the name is not well known...metabolic syndrome.

http://med.stanford.edu/news/all-news/2017/01/caffeine-may-counter-age-related-inflammation-study-finds.html

Coffee is the most common source of caffeine but many types people buy daily, especially novelty coffee's such as pumpkin spice latte's have many artificial and other unhealthy ingredients. If you are making your own or go to a good quality shop then that's fine.  My fave source for caffeine is Matcha Green Tea (David's Tea -- Ceremonial Matcha is pretty good) , which is different then regular Green Tea, in that it's the entire leaf dried and crushed up to form a powder.  This means you are getting all the special nutrients & caffeine at top levels, this is why a cup of Matcha has about the same caffeine level as a cup of Java.