The health benefits of regular coffee consumption have been exhaustively confirmed by every major medical research organization. It's beyond dispute.
A couple of caveats, from someone who drinks at least a quart a day. I'm largely immune to its stimulant effects at this point, but two days without will trigger caffeine's unpleasant phyicsl withdrawal effects for a day.
Use a paper filter. Failing to do so will negatively impact your lipids. If you consume a lot of coffee this could be significant. This includes espresso based drinks which don't use filters. I learned this the hard way after switching to espresso for a while.
Caffeine is a sub-par stimulant with a short half life, jitters in proportion to the stimulant effect, rapid tolerance, physical withdrawal, and other unpleasant effects at high doses.
Modafinil is superior in every way. Non-addictive, far longer lasting, no tolerance buildup, no jitters.
Daily use is correlated with healthier weight and has been shown to boost brain health and neuroplasticity. It has a long and well documented safety record. I call it "designer caffeine", because it's everything you'd want from caffeine without the downsides.
Still, I keep drinking coffee for its positive impact on metabolic health and the high dose of antioxidants it provides.
