Other than that, antioxidants play a significant role in neutralising free radicals that naturally occur as a part of daily metabolic functions. However, the radicals in question are those that can cause oxidative stress and not the useful type. In other words, the antioxidants in a steaming cup of coffee can go a long way in keeping you healthy at a micro-level. And they do so by protecting your cells from any possible external physical damage.
Other studies have tried to pinpoint exactly what in caffeine is helping to halt the onset of these diseases. A 2014 study (14) found that caffeine blocks various tau receptors (a protein that contributes to brain cell degeneration). Another study found that caffeinated coffee increased GCSF (15) - a substance greatly decreased in Alzheimer’s patients - levels in the bloodstream.
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