I started drinking my coffee black on January 1 this year. My goal was to cut dairy from my diet. I had always liked a particular restaurant coffee so I started buying it at the store and adjusting it to suit my taste. Turns out I like very weak, black coffee, so I make my coffee with few grounds (for now). Maybe on time I will start adding more grounds into the mix, but for now I am enjoying my favorite coffee, black.
A 28-year study, eventually published in 2017 in Alzheimer's and Dementia, the journal of the Alzheimer's Association, determined that four to five cups of a coffee a day – a level deemed "moderate" – led to a decreased risk of dementia during that time period. Those who drank coffee in moderate levels had less medial temporal atrophy, which is linked to Alzheimer's disease, compared to those who drank three or fewer cups a day, including those who didn't drink any.