Excellent study from the British Medical Journal about the benefits of coffee. Great article, unless you decide to read it all. The results are summarized from AARP

https://www.aarp.org/health/healthy-living/info-2017/health-benefits-coffee-fd.html?cmp=EMC-DSO-NLC-RSS—CTRL-121517-P1-2628134&ET_CID=2628134&ET_RID=1812383&mi_u=1812383&mi_ecmp=20171215_DailyBulletin_Control_247401_320001&encparam=T1xYyJur3TtcxT4DBw5URHWYc9PIunjdfCYhokaPwtI=